/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-simplified/s3_srvr_6.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:45:09,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:45:09,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:45:09,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:45:09,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:45:09,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:45:09,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:45:09,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:45:09,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:45:09,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:45:09,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:45:09,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:45:09,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:45:09,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:45:09,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:45:09,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:45:09,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:45:09,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:45:09,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:45:09,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:45:09,636 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:45:09,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:45:09,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:45:09,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:45:09,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:45:09,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:45:09,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:45:09,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:45:09,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:45:09,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:45:09,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:45:09,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:45:09,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:45:09,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:45:09,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:45:09,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:45:09,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:45:09,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:45:09,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:45:09,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:45:09,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:45:09,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:45:09,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:45:09,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:45:09,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:45:09,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:45:09,671 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:45:09,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:45:09,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:45:09,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:45:09,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:45:09,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:45:09,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:45:09,673 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:45:09,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:45:09,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:45:09,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:45:09,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:45:09,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:45:09,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:45:09,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:45:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:09,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:45:09,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:45:09,675 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:45:09,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:45:09,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:45:09,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:45:09,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:45:09,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:45:09,914 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:45:09,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-03-17 18:45:09,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4980f85e/8e3af73c3513432bb8852be45e788723/FLAGebad519ee [2022-03-17 18:45:10,371 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:45:10,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-03-17 18:45:10,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4980f85e/8e3af73c3513432bb8852be45e788723/FLAGebad519ee [2022-03-17 18:45:10,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4980f85e/8e3af73c3513432bb8852be45e788723 [2022-03-17 18:45:10,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:45:10,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:45:10,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:10,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:45:10,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:45:10,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cdc2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10, skipping insertion in model container [2022-03-17 18:45:10,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:45:10,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:45:10,631 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-simplified/s3_srvr_6.cil-2.c[48455,48468] [2022-03-17 18:45:10,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:10,648 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:45:10,688 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-simplified/s3_srvr_6.cil-2.c[48455,48468] [2022-03-17 18:45:10,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:10,699 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:45:10,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10 WrapperNode [2022-03-17 18:45:10,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:10,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:45:10,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:45:10,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:45:10,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:45:10,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:45:10,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:45:10,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:45:10,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (1/1) ... [2022-03-17 18:45:10,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:10,830 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 18:45:10,832 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 18:45:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:45:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:45:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:45:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:45:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:45:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:45:10,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:45:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:45:10,945 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:45:10,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:45:11,040 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:45:11,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-03-17 18:45:11,287 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-03-17 18:45:11,293 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:45:11,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:45:11,300 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:45:11,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:11 BoogieIcfgContainer [2022-03-17 18:45:11,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:45:11,302 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:45:11,302 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:45:11,303 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:45:11,306 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:11" (1/1) ... [2022-03-17 18:45:11,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:11 BasicIcfg [2022-03-17 18:45:11,330 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:45:11,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:45:11,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:45:11,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:45:11,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:45:10" (1/4) ... [2022-03-17 18:45:11,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1418a507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:11, skipping insertion in model container [2022-03-17 18:45:11,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:10" (2/4) ... [2022-03-17 18:45:11,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1418a507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:11, skipping insertion in model container [2022-03-17 18:45:11,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:11" (3/4) ... [2022-03-17 18:45:11,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1418a507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:11, skipping insertion in model container [2022-03-17 18:45:11,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:11" (4/4) ... [2022-03-17 18:45:11,335 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.cJordan [2022-03-17 18:45:11,341 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:45:11,342 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:45:11,390 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:45:11,397 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 18:45:11,397 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:45:11,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 18:45:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 18:45:11,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:11,420 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] [2022-03-17 18:45:11,420 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash -358733412, now seen corresponding path program 1 times [2022-03-17 18:45:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:11,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411724400] [2022-03-17 18:45:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:11,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:11,724 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 18:45:11,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411724400] [2022-03-17 18:45:11,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411724400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:11,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:11,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:11,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731279717] [2022-03-17 18:45:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:11,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:11,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:11,753 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:12,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:12,231 INFO L93 Difference]: Finished difference Result 220 states and 374 transitions. [2022-03-17 18:45:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:12,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-17 18:45:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:12,241 INFO L225 Difference]: With dead ends: 220 [2022-03-17 18:45:12,241 INFO L226 Difference]: Without dead ends: 199 [2022-03-17 18:45:12,242 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:12,244 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 931 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:12,245 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 225 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-17 18:45:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-03-17 18:45:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2022-03-17 18:45:12,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.6467391304347827) internal successors, (303), 184 states have internal predecessors, (303), 3 states have call successors, (3), 3 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 18:45:12,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 307 transitions. [2022-03-17 18:45:12,275 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 307 transitions. Word has length 50 [2022-03-17 18:45:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:12,276 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 307 transitions. [2022-03-17 18:45:12,276 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:12,276 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 307 transitions. [2022-03-17 18:45:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 18:45:12,277 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:12,277 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] [2022-03-17 18:45:12,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:45:12,278 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:12,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2028945941, now seen corresponding path program 1 times [2022-03-17 18:45:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:12,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082296549] [2022-03-17 18:45:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:12,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:12,345 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 18:45:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:12,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082296549] [2022-03-17 18:45:12,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082296549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:12,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:12,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:12,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331754325] [2022-03-17 18:45:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:12,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:12,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:12,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:12,347 INFO L87 Difference]: Start difference. First operand 189 states and 307 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:12,650 INFO L93 Difference]: Finished difference Result 238 states and 395 transitions. [2022-03-17 18:45:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-17 18:45:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:12,653 INFO L225 Difference]: With dead ends: 238 [2022-03-17 18:45:12,653 INFO L226 Difference]: Without dead ends: 238 [2022-03-17 18:45:12,653 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:12,654 INFO L912 BasicCegarLoop]: 165 mSDtfsCounter, 796 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:12,655 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 182 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-03-17 18:45:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2022-03-17 18:45:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.6860986547085202) internal successors, (376), 223 states have internal predecessors, (376), 3 states have call successors, (3), 3 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 18:45:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 380 transitions. [2022-03-17 18:45:12,666 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 380 transitions. Word has length 51 [2022-03-17 18:45:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:12,666 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 380 transitions. [2022-03-17 18:45:12,666 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 380 transitions. [2022-03-17 18:45:12,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 18:45:12,669 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:12,669 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:12,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:45:12,669 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1187775796, now seen corresponding path program 1 times [2022-03-17 18:45:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:12,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549155121] [2022-03-17 18:45:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:12,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:12,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:12,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:12,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549155121] [2022-03-17 18:45:12,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549155121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:12,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:12,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:12,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410680036] [2022-03-17 18:45:12,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:12,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:12,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:12,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:12,746 INFO L87 Difference]: Start difference. First operand 228 states and 380 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:13,023 INFO L93 Difference]: Finished difference Result 259 states and 436 transitions. [2022-03-17 18:45:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-17 18:45:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:13,025 INFO L225 Difference]: With dead ends: 259 [2022-03-17 18:45:13,025 INFO L226 Difference]: Without dead ends: 259 [2022-03-17 18:45:13,025 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:13,026 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 717 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:13,027 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 193 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-17 18:45:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-03-17 18:45:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 254 states have (on average 1.7007874015748032) internal successors, (432), 254 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 436 transitions. [2022-03-17 18:45:13,036 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 436 transitions. Word has length 78 [2022-03-17 18:45:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:13,036 INFO L478 AbstractCegarLoop]: Abstraction has 259 states and 436 transitions. [2022-03-17 18:45:13,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 436 transitions. [2022-03-17 18:45:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 18:45:13,049 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:13,049 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:13,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:45:13,050 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:13,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1277325544, now seen corresponding path program 1 times [2022-03-17 18:45:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:13,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023554984] [2022-03-17 18:45:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:13,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:13,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023554984] [2022-03-17 18:45:13,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023554984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:13,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:13,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:13,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820222085] [2022-03-17 18:45:13,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:13,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:13,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:13,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:13,126 INFO L87 Difference]: Start difference. First operand 259 states and 436 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:13,421 INFO L93 Difference]: Finished difference Result 298 states and 505 transitions. [2022-03-17 18:45:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 18:45:13,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:13,423 INFO L225 Difference]: With dead ends: 298 [2022-03-17 18:45:13,423 INFO L226 Difference]: Without dead ends: 298 [2022-03-17 18:45:13,423 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:13,424 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:13,425 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 181 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-17 18:45:13,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2022-03-17 18:45:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.7137931034482758) internal successors, (497), 290 states have internal predecessors, (497), 3 states have call successors, (3), 3 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 18:45:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 501 transitions. [2022-03-17 18:45:13,433 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 501 transitions. Word has length 84 [2022-03-17 18:45:13,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:13,433 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 501 transitions. [2022-03-17 18:45:13,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 501 transitions. [2022-03-17 18:45:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 18:45:13,435 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:13,435 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 18:45:13,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:45:13,436 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:13,436 INFO L85 PathProgramCache]: Analyzing trace with hash -749695146, now seen corresponding path program 1 times [2022-03-17 18:45:13,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:13,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211479954] [2022-03-17 18:45:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:13,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:13,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:13,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211479954] [2022-03-17 18:45:13,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211479954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:13,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:13,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:13,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488763253] [2022-03-17 18:45:13,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:13,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:13,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:13,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:13,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:13,496 INFO L87 Difference]: Start difference. First operand 295 states and 501 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:13,816 INFO L93 Difference]: Finished difference Result 298 states and 503 transitions. [2022-03-17 18:45:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-17 18:45:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:13,818 INFO L225 Difference]: With dead ends: 298 [2022-03-17 18:45:13,818 INFO L226 Difference]: Without dead ends: 298 [2022-03-17 18:45:13,818 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:13,819 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 771 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:13,819 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 181 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-17 18:45:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2022-03-17 18:45:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.706896551724138) internal successors, (495), 290 states have internal predecessors, (495), 3 states have call successors, (3), 3 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 18:45:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 499 transitions. [2022-03-17 18:45:13,826 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 499 transitions. Word has length 85 [2022-03-17 18:45:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:13,827 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 499 transitions. [2022-03-17 18:45:13,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 499 transitions. [2022-03-17 18:45:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-17 18:45:13,828 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:13,828 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:13,828 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:45:13,829 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 514856305, now seen corresponding path program 1 times [2022-03-17 18:45:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254616332] [2022-03-17 18:45:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:13,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:13,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:13,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254616332] [2022-03-17 18:45:13,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254616332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:13,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:13,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:13,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582949048] [2022-03-17 18:45:13,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:13,895 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:13,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:13,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:13,896 INFO L87 Difference]: Start difference. First operand 295 states and 499 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,165 INFO L93 Difference]: Finished difference Result 312 states and 523 transitions. [2022-03-17 18:45:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:14,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-17 18:45:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,166 INFO L225 Difference]: With dead ends: 312 [2022-03-17 18:45:14,167 INFO L226 Difference]: Without dead ends: 312 [2022-03-17 18:45:14,167 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:14,168 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 679 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,168 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 193 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-03-17 18:45:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2022-03-17 18:45:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.6950819672131148) internal successors, (517), 305 states have internal predecessors, (517), 3 states have call successors, (3), 3 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 18:45:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 521 transitions. [2022-03-17 18:45:14,174 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 521 transitions. Word has length 90 [2022-03-17 18:45:14,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,174 INFO L478 AbstractCegarLoop]: Abstraction has 310 states and 521 transitions. [2022-03-17 18:45:14,175 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,175 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 521 transitions. [2022-03-17 18:45:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:45:14,176 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,176 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:14,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:45:14,176 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1598049749, now seen corresponding path program 1 times [2022-03-17 18:45:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263058278] [2022-03-17 18:45:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:14,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263058278] [2022-03-17 18:45:14,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263058278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:14,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454291234] [2022-03-17 18:45:14,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:14,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:14,230 INFO L87 Difference]: Start difference. First operand 310 states and 521 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,480 INFO L93 Difference]: Finished difference Result 312 states and 519 transitions. [2022-03-17 18:45:14,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:14,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-17 18:45:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,482 INFO L225 Difference]: With dead ends: 312 [2022-03-17 18:45:14,482 INFO L226 Difference]: Without dead ends: 312 [2022-03-17 18:45:14,482 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:14,483 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 704 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,483 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 181 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-03-17 18:45:14,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2022-03-17 18:45:14,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.681967213114754) internal successors, (513), 305 states have internal predecessors, (513), 3 states have call successors, (3), 3 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 18:45:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 517 transitions. [2022-03-17 18:45:14,489 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 517 transitions. Word has length 91 [2022-03-17 18:45:14,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,489 INFO L478 AbstractCegarLoop]: Abstraction has 310 states and 517 transitions. [2022-03-17 18:45:14,489 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 517 transitions. [2022-03-17 18:45:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-17 18:45:14,490 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,490 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:14,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:45:14,491 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,493 INFO L85 PathProgramCache]: Analyzing trace with hash -43098040, now seen corresponding path program 1 times [2022-03-17 18:45:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550093765] [2022-03-17 18:45:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-03-17 18:45:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550093765] [2022-03-17 18:45:14,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550093765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552383765] [2022-03-17 18:45:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:14,563 INFO L87 Difference]: Start difference. First operand 310 states and 517 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,804 INFO L93 Difference]: Finished difference Result 319 states and 523 transitions. [2022-03-17 18:45:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:14,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-17 18:45:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,806 INFO L225 Difference]: With dead ends: 319 [2022-03-17 18:45:14,806 INFO L226 Difference]: Without dead ends: 319 [2022-03-17 18:45:14,806 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:14,807 INFO L912 BasicCegarLoop]: 165 mSDtfsCounter, 705 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,807 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 182 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-17 18:45:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-03-17 18:45:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.6528662420382165) internal successors, (519), 314 states have internal predecessors, (519), 3 states have call successors, (3), 3 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 18:45:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 523 transitions. [2022-03-17 18:45:14,813 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 523 transitions. Word has length 103 [2022-03-17 18:45:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,813 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 523 transitions. [2022-03-17 18:45:14,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 523 transitions. [2022-03-17 18:45:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 18:45:14,814 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,814 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:14,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:45:14,815 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2093863459, now seen corresponding path program 1 times [2022-03-17 18:45:14,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97390111] [2022-03-17 18:45:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:14,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97390111] [2022-03-17 18:45:14,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97390111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:14,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381292440] [2022-03-17 18:45:14,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:14,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:14,861 INFO L87 Difference]: Start difference. First operand 319 states and 523 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,123 INFO L93 Difference]: Finished difference Result 350 states and 572 transitions. [2022-03-17 18:45:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:15,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 18:45:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,125 INFO L225 Difference]: With dead ends: 350 [2022-03-17 18:45:15,125 INFO L226 Difference]: Without dead ends: 350 [2022-03-17 18:45:15,125 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:15,125 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 734 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,126 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 184 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-17 18:45:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-03-17 18:45:15,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6501457725947521) internal successors, (566), 343 states have internal predecessors, (566), 3 states have call successors, (3), 3 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 18:45:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 570 transitions. [2022-03-17 18:45:15,132 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 570 transitions. Word has length 104 [2022-03-17 18:45:15,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,132 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 570 transitions. [2022-03-17 18:45:15,132 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 570 transitions. [2022-03-17 18:45:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-17 18:45:15,133 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,134 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-03-17 18:45:15,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:45:15,134 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1125033666, now seen corresponding path program 1 times [2022-03-17 18:45:15,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449297287] [2022-03-17 18:45:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:15,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449297287] [2022-03-17 18:45:15,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449297287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:15,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794137333] [2022-03-17 18:45:15,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:15,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:15,193 INFO L87 Difference]: Start difference. First operand 348 states and 570 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,452 INFO L93 Difference]: Finished difference Result 350 states and 568 transitions. [2022-03-17 18:45:15,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:15,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-17 18:45:15,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,454 INFO L225 Difference]: With dead ends: 350 [2022-03-17 18:45:15,454 INFO L226 Difference]: Without dead ends: 350 [2022-03-17 18:45:15,454 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:15,455 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 737 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,455 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 184 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-17 18:45:15,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-03-17 18:45:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6384839650145773) internal successors, (562), 343 states have internal predecessors, (562), 3 states have call successors, (3), 3 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 18:45:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 566 transitions. [2022-03-17 18:45:15,461 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 566 transitions. Word has length 105 [2022-03-17 18:45:15,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,461 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 566 transitions. [2022-03-17 18:45:15,461 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 566 transitions. [2022-03-17 18:45:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-17 18:45:15,462 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,462 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:15,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:45:15,463 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1292482044, now seen corresponding path program 1 times [2022-03-17 18:45:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016048682] [2022-03-17 18:45:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:15,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016048682] [2022-03-17 18:45:15,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016048682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:15,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640037704] [2022-03-17 18:45:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:15,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:15,503 INFO L87 Difference]: Start difference. First operand 348 states and 566 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,772 INFO L93 Difference]: Finished difference Result 384 states and 623 transitions. [2022-03-17 18:45:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:15,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-03-17 18:45:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,774 INFO L225 Difference]: With dead ends: 384 [2022-03-17 18:45:15,774 INFO L226 Difference]: Without dead ends: 384 [2022-03-17 18:45:15,775 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:15,775 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,775 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 184 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-17 18:45:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2022-03-17 18:45:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.6324324324324324) internal successors, (604), 370 states have internal predecessors, (604), 3 states have call successors, (3), 3 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 18:45:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 608 transitions. [2022-03-17 18:45:15,781 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 608 transitions. Word has length 107 [2022-03-17 18:45:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,782 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 608 transitions. [2022-03-17 18:45:15,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 608 transitions. [2022-03-17 18:45:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 18:45:15,783 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,783 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:15,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:45:15,783 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,784 INFO L85 PathProgramCache]: Analyzing trace with hash 657506956, now seen corresponding path program 1 times [2022-03-17 18:45:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749298449] [2022-03-17 18:45:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:15,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749298449] [2022-03-17 18:45:15,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749298449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743998530] [2022-03-17 18:45:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:15,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:15,824 INFO L87 Difference]: Start difference. First operand 375 states and 608 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,092 INFO L93 Difference]: Finished difference Result 384 states and 618 transitions. [2022-03-17 18:45:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:16,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-17 18:45:16,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,094 INFO L225 Difference]: With dead ends: 384 [2022-03-17 18:45:16,094 INFO L226 Difference]: Without dead ends: 384 [2022-03-17 18:45:16,094 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:16,094 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 757 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,095 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [757 Valid, 184 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-17 18:45:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2022-03-17 18:45:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.6189189189189188) internal successors, (599), 370 states have internal predecessors, (599), 3 states have call successors, (3), 3 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 18:45:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 603 transitions. [2022-03-17 18:45:16,101 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 603 transitions. Word has length 108 [2022-03-17 18:45:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,101 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 603 transitions. [2022-03-17 18:45:16,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 603 transitions. [2022-03-17 18:45:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 18:45:16,103 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,103 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:16,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:45:16,103 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,103 INFO L85 PathProgramCache]: Analyzing trace with hash -267767569, now seen corresponding path program 1 times [2022-03-17 18:45:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510220000] [2022-03-17 18:45:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-03-17 18:45:16,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510220000] [2022-03-17 18:45:16,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510220000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:16,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955876228] [2022-03-17 18:45:16,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:16,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:16,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:16,147 INFO L87 Difference]: Start difference. First operand 375 states and 603 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,470 INFO L93 Difference]: Finished difference Result 412 states and 660 transitions. [2022-03-17 18:45:16,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-17 18:45:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,472 INFO L225 Difference]: With dead ends: 412 [2022-03-17 18:45:16,472 INFO L226 Difference]: Without dead ends: 412 [2022-03-17 18:45:16,472 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:16,472 INFO L912 BasicCegarLoop]: 169 mSDtfsCounter, 747 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,473 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 186 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-03-17 18:45:16,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2022-03-17 18:45:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 404 states have (on average 1.613861386138614) internal successors, (652), 404 states have internal predecessors, (652), 3 states have call successors, (3), 3 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 18:45:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 656 transitions. [2022-03-17 18:45:16,479 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 656 transitions. Word has length 116 [2022-03-17 18:45:16,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,479 INFO L478 AbstractCegarLoop]: Abstraction has 409 states and 656 transitions. [2022-03-17 18:45:16,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,480 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 656 transitions. [2022-03-17 18:45:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 18:45:16,481 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,481 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 18:45:16,482 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:45:16,482 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash -965090626, now seen corresponding path program 1 times [2022-03-17 18:45:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546533794] [2022-03-17 18:45:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-03-17 18:45:16,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546533794] [2022-03-17 18:45:16,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546533794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638393403] [2022-03-17 18:45:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:16,527 INFO L87 Difference]: Start difference. First operand 409 states and 656 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,809 INFO L93 Difference]: Finished difference Result 412 states and 657 transitions. [2022-03-17 18:45:16,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:16,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 18:45:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,812 INFO L225 Difference]: With dead ends: 412 [2022-03-17 18:45:16,812 INFO L226 Difference]: Without dead ends: 412 [2022-03-17 18:45:16,812 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:16,813 INFO L912 BasicCegarLoop]: 169 mSDtfsCounter, 750 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,813 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 186 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-03-17 18:45:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2022-03-17 18:45:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 404 states have (on average 1.6064356435643565) internal successors, (649), 404 states have internal predecessors, (649), 3 states have call successors, (3), 3 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 18:45:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 653 transitions. [2022-03-17 18:45:16,822 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 653 transitions. Word has length 117 [2022-03-17 18:45:16,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,823 INFO L478 AbstractCegarLoop]: Abstraction has 409 states and 653 transitions. [2022-03-17 18:45:16,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 653 transitions. [2022-03-17 18:45:16,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-17 18:45:16,824 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,824 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:16,824 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:45:16,824 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash 372273407, now seen corresponding path program 1 times [2022-03-17 18:45:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213429380] [2022-03-17 18:45:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:16,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213429380] [2022-03-17 18:45:16,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213429380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077225102] [2022-03-17 18:45:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:16,882 INFO L87 Difference]: Start difference. First operand 409 states and 653 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,161 INFO L93 Difference]: Finished difference Result 457 states and 728 transitions. [2022-03-17 18:45:17,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:17,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-03-17 18:45:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,164 INFO L225 Difference]: With dead ends: 457 [2022-03-17 18:45:17,164 INFO L226 Difference]: Without dead ends: 457 [2022-03-17 18:45:17,164 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:17,165 INFO L912 BasicCegarLoop]: 173 mSDtfsCounter, 770 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,165 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 190 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-17 18:45:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 451. [2022-03-17 18:45:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.600896860986547) internal successors, (714), 446 states have internal predecessors, (714), 3 states have call successors, (3), 3 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 18:45:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 718 transitions. [2022-03-17 18:45:17,173 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 718 transitions. Word has length 120 [2022-03-17 18:45:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,173 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 718 transitions. [2022-03-17 18:45:17,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 718 transitions. [2022-03-17 18:45:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-17 18:45:17,175 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,175 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:17,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:45:17,175 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash 638954667, now seen corresponding path program 1 times [2022-03-17 18:45:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865651506] [2022-03-17 18:45:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:45:17,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865651506] [2022-03-17 18:45:17,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865651506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:17,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408295424] [2022-03-17 18:45:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:17,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:17,225 INFO L87 Difference]: Start difference. First operand 451 states and 718 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,499 INFO L93 Difference]: Finished difference Result 461 states and 734 transitions. [2022-03-17 18:45:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:17,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-17 18:45:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,501 INFO L225 Difference]: With dead ends: 461 [2022-03-17 18:45:17,501 INFO L226 Difference]: Without dead ends: 459 [2022-03-17 18:45:17,501 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:17,502 INFO L912 BasicCegarLoop]: 173 mSDtfsCounter, 772 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,502 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 190 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-17 18:45:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 453. [2022-03-17 18:45:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.6004464285714286) internal successors, (717), 448 states have internal predecessors, (717), 3 states have call successors, (3), 3 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 18:45:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 721 transitions. [2022-03-17 18:45:17,509 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 721 transitions. Word has length 121 [2022-03-17 18:45:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,509 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 721 transitions. [2022-03-17 18:45:17,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 721 transitions. [2022-03-17 18:45:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 18:45:17,510 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,510 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:45:17,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:45:17,510 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,511 INFO L85 PathProgramCache]: Analyzing trace with hash -205261930, now seen corresponding path program 1 times [2022-03-17 18:45:17,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767673148] [2022-03-17 18:45:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 18:45:17,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767673148] [2022-03-17 18:45:17,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767673148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:17,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454025985] [2022-03-17 18:45:17,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:17,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:17,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:17,553 INFO L87 Difference]: Start difference. First operand 453 states and 721 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,817 INFO L93 Difference]: Finished difference Result 492 states and 779 transitions. [2022-03-17 18:45:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:17,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 18:45:17,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,819 INFO L225 Difference]: With dead ends: 492 [2022-03-17 18:45:17,819 INFO L226 Difference]: Without dead ends: 492 [2022-03-17 18:45:17,819 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:17,820 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 764 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,820 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 184 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-17 18:45:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 478. [2022-03-17 18:45:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5898520084566596) internal successors, (752), 473 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 756 transitions. [2022-03-17 18:45:17,827 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 756 transitions. Word has length 133 [2022-03-17 18:45:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,827 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 756 transitions. [2022-03-17 18:45:17,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,828 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 756 transitions. [2022-03-17 18:45:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 18:45:17,829 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,829 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:45:17,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:45:17,829 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1607326430, now seen corresponding path program 1 times [2022-03-17 18:45:17,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320943421] [2022-03-17 18:45:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 18:45:17,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320943421] [2022-03-17 18:45:17,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320943421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:17,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756423352] [2022-03-17 18:45:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:17,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:17,868 INFO L87 Difference]: Start difference. First operand 478 states and 756 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,134 INFO L93 Difference]: Finished difference Result 492 states and 771 transitions. [2022-03-17 18:45:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 18:45:18,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,137 INFO L225 Difference]: With dead ends: 492 [2022-03-17 18:45:18,137 INFO L226 Difference]: Without dead ends: 492 [2022-03-17 18:45:18,137 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:18,137 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,138 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 184 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-17 18:45:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 478. [2022-03-17 18:45:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.572938689217759) internal successors, (744), 473 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 18:45:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 748 transitions. [2022-03-17 18:45:18,166 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 748 transitions. Word has length 134 [2022-03-17 18:45:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,167 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 748 transitions. [2022-03-17 18:45:18,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 748 transitions. [2022-03-17 18:45:18,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 18:45:18,168 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,168 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:18,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:45:18,169 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash -683306934, now seen corresponding path program 1 times [2022-03-17 18:45:18,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926631608] [2022-03-17 18:45:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-03-17 18:45:18,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926631608] [2022-03-17 18:45:18,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926631608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:18,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299063595] [2022-03-17 18:45:18,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,220 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:18,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:18,221 INFO L87 Difference]: Start difference. First operand 478 states and 748 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,509 INFO L93 Difference]: Finished difference Result 484 states and 752 transitions. [2022-03-17 18:45:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 18:45:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,511 INFO L225 Difference]: With dead ends: 484 [2022-03-17 18:45:18,511 INFO L226 Difference]: Without dead ends: 484 [2022-03-17 18:45:18,511 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:18,511 INFO L912 BasicCegarLoop]: 170 mSDtfsCounter, 748 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,512 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 187 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-03-17 18:45:18,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-03-17 18:45:18,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.562367864693446) internal successors, (739), 473 states have internal predecessors, (739), 3 states have call successors, (3), 3 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 18:45:18,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 743 transitions. [2022-03-17 18:45:18,518 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 743 transitions. Word has length 149 [2022-03-17 18:45:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,519 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 743 transitions. [2022-03-17 18:45:18,519 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 743 transitions. [2022-03-17 18:45:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 18:45:18,520 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,520 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:18,520 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:45:18,520 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,521 INFO L85 PathProgramCache]: Analyzing trace with hash 592780155, now seen corresponding path program 1 times [2022-03-17 18:45:18,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003264480] [2022-03-17 18:45:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-03-17 18:45:18,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003264480] [2022-03-17 18:45:18,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003264480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811894518] [2022-03-17 18:45:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:18,557 INFO L87 Difference]: Start difference. First operand 478 states and 743 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,856 INFO L93 Difference]: Finished difference Result 484 states and 747 transitions. [2022-03-17 18:45:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:18,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 18:45:18,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,858 INFO L225 Difference]: With dead ends: 484 [2022-03-17 18:45:18,858 INFO L226 Difference]: Without dead ends: 484 [2022-03-17 18:45:18,858 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:18,859 INFO L912 BasicCegarLoop]: 171 mSDtfsCounter, 748 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,859 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 188 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:18,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-03-17 18:45:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-03-17 18:45:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5517970401691332) internal successors, (734), 473 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 18:45:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 738 transitions. [2022-03-17 18:45:18,868 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 738 transitions. Word has length 150 [2022-03-17 18:45:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,868 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 738 transitions. [2022-03-17 18:45:18,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 738 transitions. [2022-03-17 18:45:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 18:45:18,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,870 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-17 18:45:18,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:45:18,870 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1897943287, now seen corresponding path program 1 times [2022-03-17 18:45:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20055310] [2022-03-17 18:45:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-17 18:45:18,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20055310] [2022-03-17 18:45:18,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20055310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:18,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:18,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88648645] [2022-03-17 18:45:18,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:18,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:18,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:18,916 INFO L87 Difference]: Start difference. First operand 478 states and 738 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,177 INFO L93 Difference]: Finished difference Result 507 states and 776 transitions. [2022-03-17 18:45:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:19,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-17 18:45:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,179 INFO L225 Difference]: With dead ends: 507 [2022-03-17 18:45:19,179 INFO L226 Difference]: Without dead ends: 507 [2022-03-17 18:45:19,179 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:19,179 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 728 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,180 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 184 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-03-17 18:45:19,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 502. [2022-03-17 18:45:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.539235412474849) internal successors, (765), 497 states have internal predecessors, (765), 3 states have call successors, (3), 3 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 18:45:19,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 769 transitions. [2022-03-17 18:45:19,187 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 769 transitions. Word has length 154 [2022-03-17 18:45:19,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,187 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 769 transitions. [2022-03-17 18:45:19,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,187 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 769 transitions. [2022-03-17 18:45:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 18:45:19,188 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,188 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-03-17 18:45:19,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:45:19,188 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash 330640256, now seen corresponding path program 1 times [2022-03-17 18:45:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692828304] [2022-03-17 18:45:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-17 18:45:19,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692828304] [2022-03-17 18:45:19,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692828304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63029528] [2022-03-17 18:45:19,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,242 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:19,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:19,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:19,243 INFO L87 Difference]: Start difference. First operand 502 states and 769 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,489 INFO L93 Difference]: Finished difference Result 507 states and 767 transitions. [2022-03-17 18:45:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:19,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 18:45:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,491 INFO L225 Difference]: With dead ends: 507 [2022-03-17 18:45:19,491 INFO L226 Difference]: Without dead ends: 507 [2022-03-17 18:45:19,491 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:19,493 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 729 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,493 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 184 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-03-17 18:45:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 502. [2022-03-17 18:45:19,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5211267605633803) internal successors, (756), 497 states have internal predecessors, (756), 3 states have call successors, (3), 3 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 18:45:19,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 760 transitions. [2022-03-17 18:45:19,499 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 760 transitions. Word has length 155 [2022-03-17 18:45:19,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,499 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 760 transitions. [2022-03-17 18:45:19,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 760 transitions. [2022-03-17 18:45:19,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 18:45:19,500 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,500 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:19,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:45:19,500 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 127316706, now seen corresponding path program 1 times [2022-03-17 18:45:19,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701319907] [2022-03-17 18:45:19,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-03-17 18:45:19,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701319907] [2022-03-17 18:45:19,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701319907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:19,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185971581] [2022-03-17 18:45:19,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:19,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:19,542 INFO L87 Difference]: Start difference. First operand 502 states and 760 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,750 INFO L93 Difference]: Finished difference Result 550 states and 826 transitions. [2022-03-17 18:45:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:19,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-17 18:45:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,752 INFO L225 Difference]: With dead ends: 550 [2022-03-17 18:45:19,752 INFO L226 Difference]: Without dead ends: 550 [2022-03-17 18:45:19,753 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:19,753 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 751 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,753 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 197 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-17 18:45:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 543. [2022-03-17 18:45:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.5074349442379182) internal successors, (811), 538 states have internal predecessors, (811), 3 states have call successors, (3), 3 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 18:45:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 815 transitions. [2022-03-17 18:45:19,759 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 815 transitions. Word has length 160 [2022-03-17 18:45:19,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,759 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 815 transitions. [2022-03-17 18:45:19,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 815 transitions. [2022-03-17 18:45:19,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 18:45:19,761 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,761 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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, 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] [2022-03-17 18:45:19,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:45:19,762 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1255388046, now seen corresponding path program 1 times [2022-03-17 18:45:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294313865] [2022-03-17 18:45:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-03-17 18:45:19,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294313865] [2022-03-17 18:45:19,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294313865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:19,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965853713] [2022-03-17 18:45:19,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:19,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:19,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:19,847 INFO L87 Difference]: Start difference. First operand 543 states and 815 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,093 INFO L93 Difference]: Finished difference Result 550 states and 824 transitions. [2022-03-17 18:45:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:20,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-17 18:45:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,095 INFO L225 Difference]: With dead ends: 550 [2022-03-17 18:45:20,095 INFO L226 Difference]: Without dead ends: 531 [2022-03-17 18:45:20,096 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:20,096 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 752 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,096 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 196 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:20,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-03-17 18:45:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 524. [2022-03-17 18:45:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5048169556840076) internal successors, (781), 519 states have internal predecessors, (781), 3 states have call successors, (3), 3 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 18:45:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 785 transitions. [2022-03-17 18:45:20,103 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 785 transitions. Word has length 161 [2022-03-17 18:45:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,104 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 785 transitions. [2022-03-17 18:45:20,104 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 785 transitions. [2022-03-17 18:45:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 18:45:20,105 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,105 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-17 18:45:20,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:45:20,105 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,106 INFO L85 PathProgramCache]: Analyzing trace with hash -374590154, now seen corresponding path program 1 times [2022-03-17 18:45:20,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411294208] [2022-03-17 18:45:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-03-17 18:45:20,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411294208] [2022-03-17 18:45:20,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411294208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:20,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392246647] [2022-03-17 18:45:20,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:20,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:20,144 INFO L87 Difference]: Start difference. First operand 524 states and 785 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,404 INFO L93 Difference]: Finished difference Result 549 states and 815 transitions. [2022-03-17 18:45:20,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:20,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-17 18:45:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,406 INFO L225 Difference]: With dead ends: 549 [2022-03-17 18:45:20,407 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 18:45:20,407 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:20,407 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 718 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,407 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 184 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 18:45:20,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 545. [2022-03-17 18:45:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4907407407407407) internal successors, (805), 540 states have internal predecessors, (805), 3 states have call successors, (3), 3 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 18:45:20,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 809 transitions. [2022-03-17 18:45:20,414 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 809 transitions. Word has length 175 [2022-03-17 18:45:20,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,414 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 809 transitions. [2022-03-17 18:45:20,414 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 809 transitions. [2022-03-17 18:45:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 18:45:20,420 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,420 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2022-03-17 18:45:20,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:45:20,420 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1945494336, now seen corresponding path program 1 times [2022-03-17 18:45:20,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412805714] [2022-03-17 18:45:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-03-17 18:45:20,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412805714] [2022-03-17 18:45:20,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412805714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:45:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36301055] [2022-03-17 18:45:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:45:20,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:45:20,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:20,465 INFO L87 Difference]: Start difference. First operand 545 states and 809 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,711 INFO L93 Difference]: Finished difference Result 549 states and 804 transitions. [2022-03-17 18:45:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:45:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 18:45:20,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,713 INFO L225 Difference]: With dead ends: 549 [2022-03-17 18:45:20,713 INFO L226 Difference]: Without dead ends: 547 [2022-03-17 18:45:20,713 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:20,713 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 721 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,714 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 184 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-03-17 18:45:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 543. [2022-03-17 18:45:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.470260223048327) internal successors, (791), 538 states have internal predecessors, (791), 3 states have call successors, (3), 3 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 18:45:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 795 transitions. [2022-03-17 18:45:20,722 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 795 transitions. Word has length 176 [2022-03-17 18:45:20,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,722 INFO L478 AbstractCegarLoop]: Abstraction has 543 states and 795 transitions. [2022-03-17 18:45:20,722 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,723 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 795 transitions. [2022-03-17 18:45:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-17 18:45:20,724 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,724 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:20,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:45:20,724 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1612207896, now seen corresponding path program 1 times [2022-03-17 18:45:20,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590211540] [2022-03-17 18:45:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-17 18:45:20,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590211540] [2022-03-17 18:45:20,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590211540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:20,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289712309] [2022-03-17 18:45:20,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:20,767 INFO L87 Difference]: Start difference. First operand 543 states and 795 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,881 INFO L93 Difference]: Finished difference Result 1065 states and 1558 transitions. [2022-03-17 18:45:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:20,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-03-17 18:45:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,884 INFO L225 Difference]: With dead ends: 1065 [2022-03-17 18:45:20,884 INFO L226 Difference]: Without dead ends: 1065 [2022-03-17 18:45:20,885 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:20,885 INFO L912 BasicCegarLoop]: 434 mSDtfsCounter, 437 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,885 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 441 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-03-17 18:45:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 544. [2022-03-17 18:45:20,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 539 states have (on average 1.469387755102041) internal successors, (792), 539 states have internal predecessors, (792), 3 states have call successors, (3), 3 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 18:45:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 796 transitions. [2022-03-17 18:45:20,904 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 796 transitions. Word has length 191 [2022-03-17 18:45:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,904 INFO L478 AbstractCegarLoop]: Abstraction has 544 states and 796 transitions. [2022-03-17 18:45:20,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 796 transitions. [2022-03-17 18:45:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-17 18:45:20,906 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,906 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:20,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:45:20,906 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1749405063, now seen corresponding path program 1 times [2022-03-17 18:45:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633476921] [2022-03-17 18:45:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 18:45:20,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633476921] [2022-03-17 18:45:20,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633476921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:20,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:20,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984875864] [2022-03-17 18:45:20,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:20,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:20,954 INFO L87 Difference]: Start difference. First operand 544 states and 796 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 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 18:45:21,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,145 INFO L93 Difference]: Finished difference Result 1071 states and 1550 transitions. [2022-03-17 18:45:21,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-03-17 18:45:21,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,148 INFO L225 Difference]: With dead ends: 1071 [2022-03-17 18:45:21,148 INFO L226 Difference]: Without dead ends: 1071 [2022-03-17 18:45:21,148 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:21,149 INFO L912 BasicCegarLoop]: 284 mSDtfsCounter, 505 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,149 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 291 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-03-17 18:45:21,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2022-03-17 18:45:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1066 states have (on average 1.450281425891182) internal successors, (1546), 1066 states have internal predecessors, (1546), 3 states have call successors, (3), 3 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 18:45:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1550 transitions. [2022-03-17 18:45:21,159 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1550 transitions. Word has length 191 [2022-03-17 18:45:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,159 INFO L478 AbstractCegarLoop]: Abstraction has 1071 states and 1550 transitions. [2022-03-17 18:45:21,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 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 18:45:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1550 transitions. [2022-03-17 18:45:21,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-17 18:45:21,161 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,161 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:21,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:45:21,161 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1617081318, now seen corresponding path program 1 times [2022-03-17 18:45:21,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482193476] [2022-03-17 18:45:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-03-17 18:45:21,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482193476] [2022-03-17 18:45:21,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482193476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:21,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:21,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740512643] [2022-03-17 18:45:21,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:21,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:21,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:21,188 INFO L87 Difference]: Start difference. First operand 1071 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,358 INFO L93 Difference]: Finished difference Result 1128 states and 1634 transitions. [2022-03-17 18:45:21,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-03-17 18:45:21,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,361 INFO L225 Difference]: With dead ends: 1128 [2022-03-17 18:45:21,361 INFO L226 Difference]: Without dead ends: 1128 [2022-03-17 18:45:21,361 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:21,361 INFO L912 BasicCegarLoop]: 281 mSDtfsCounter, 267 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,362 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 288 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-03-17 18:45:21,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2022-03-17 18:45:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1123 states have (on average 1.4514692787177204) internal successors, (1630), 1123 states have internal predecessors, (1630), 3 states have call successors, (3), 3 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 18:45:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1634 transitions. [2022-03-17 18:45:21,372 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1634 transitions. Word has length 191 [2022-03-17 18:45:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,372 INFO L478 AbstractCegarLoop]: Abstraction has 1128 states and 1634 transitions. [2022-03-17 18:45:21,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1634 transitions. [2022-03-17 18:45:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-17 18:45:21,374 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,374 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:21,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:45:21,374 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,375 INFO L85 PathProgramCache]: Analyzing trace with hash 913218343, now seen corresponding path program 1 times [2022-03-17 18:45:21,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168887349] [2022-03-17 18:45:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-03-17 18:45:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168887349] [2022-03-17 18:45:21,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168887349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:21,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:21,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:21,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499785516] [2022-03-17 18:45:21,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:21,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:21,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:21,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:21,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:21,400 INFO L87 Difference]: Start difference. First operand 1128 states and 1634 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,576 INFO L93 Difference]: Finished difference Result 1161 states and 1681 transitions. [2022-03-17 18:45:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-03-17 18:45:21,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,581 INFO L225 Difference]: With dead ends: 1161 [2022-03-17 18:45:21,581 INFO L226 Difference]: Without dead ends: 1161 [2022-03-17 18:45:21,581 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:21,583 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 316 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,583 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 242 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-03-17 18:45:21,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1161. [2022-03-17 18:45:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1156 states have (on average 1.4506920415224913) internal successors, (1677), 1156 states have internal predecessors, (1677), 3 states have call successors, (3), 3 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 18:45:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1681 transitions. [2022-03-17 18:45:21,596 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1681 transitions. Word has length 191 [2022-03-17 18:45:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,596 INFO L478 AbstractCegarLoop]: Abstraction has 1161 states and 1681 transitions. [2022-03-17 18:45:21,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1681 transitions. [2022-03-17 18:45:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-17 18:45:21,598 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,598 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:21,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:45:21,599 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,600 INFO L85 PathProgramCache]: Analyzing trace with hash -710012914, now seen corresponding path program 1 times [2022-03-17 18:45:21,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986427453] [2022-03-17 18:45:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-03-17 18:45:21,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986427453] [2022-03-17 18:45:21,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986427453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:21,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:21,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:21,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386633850] [2022-03-17 18:45:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:21,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:21,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:21,645 INFO L87 Difference]: Start difference. First operand 1161 states and 1681 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 18:45:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:21,838 INFO L93 Difference]: Finished difference Result 1688 states and 2435 transitions. [2022-03-17 18:45:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:21,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 193 [2022-03-17 18:45:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:21,843 INFO L225 Difference]: With dead ends: 1688 [2022-03-17 18:45:21,843 INFO L226 Difference]: Without dead ends: 1688 [2022-03-17 18:45:21,843 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:21,844 INFO L912 BasicCegarLoop]: 405 mSDtfsCounter, 389 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:21,844 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 412 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2022-03-17 18:45:21,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1688. [2022-03-17 18:45:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1688 states, 1683 states have (on average 1.4444444444444444) internal successors, (2431), 1683 states have internal predecessors, (2431), 3 states have call successors, (3), 3 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 18:45:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2435 transitions. [2022-03-17 18:45:21,864 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2435 transitions. Word has length 193 [2022-03-17 18:45:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:21,864 INFO L478 AbstractCegarLoop]: Abstraction has 1688 states and 2435 transitions. [2022-03-17 18:45:21,864 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 18:45:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2435 transitions. [2022-03-17 18:45:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-17 18:45:21,867 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:21,867 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-17 18:45:21,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:45:21,867 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:21,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:21,868 INFO L85 PathProgramCache]: Analyzing trace with hash 185891438, now seen corresponding path program 1 times [2022-03-17 18:45:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:21,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252596088] [2022-03-17 18:45:21,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:21,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:21,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252596088] [2022-03-17 18:45:21,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252596088] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:21,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535486754] [2022-03-17 18:45:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:21,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:21,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:21,925 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 18:45:21,943 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 18:45:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:22,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:22,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-17 18:45:22,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:22,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535486754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:22,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:22,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:22,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859669711] [2022-03-17 18:45:22,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:22,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:22,346 INFO L87 Difference]: Start difference. First operand 1688 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 18:45:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:22,415 INFO L93 Difference]: Finished difference Result 2216 states and 3196 transitions. [2022-03-17 18:45:22,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:22,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 194 [2022-03-17 18:45:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:22,421 INFO L225 Difference]: With dead ends: 2216 [2022-03-17 18:45:22,421 INFO L226 Difference]: Without dead ends: 2216 [2022-03-17 18:45:22,422 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:22,422 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:22,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 389 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:22,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2022-03-17 18:45:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2216. [2022-03-17 18:45:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2211 states have (on average 1.4436906377204886) internal successors, (3192), 2211 states have internal predecessors, (3192), 3 states have call successors, (3), 3 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 18:45:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3196 transitions. [2022-03-17 18:45:22,448 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3196 transitions. Word has length 194 [2022-03-17 18:45:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:22,448 INFO L478 AbstractCegarLoop]: Abstraction has 2216 states and 3196 transitions. [2022-03-17 18:45:22,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 18:45:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3196 transitions. [2022-03-17 18:45:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-17 18:45:22,452 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:22,452 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:22,479 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 18:45:22,671 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,SelfDestructingSolverStorable31 [2022-03-17 18:45:22,671 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1029501384, now seen corresponding path program 1 times [2022-03-17 18:45:22,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:22,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708083425] [2022-03-17 18:45:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:22,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2022-03-17 18:45:22,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708083425] [2022-03-17 18:45:22,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708083425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:22,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:22,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809696332] [2022-03-17 18:45:22,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:22,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:22,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:22,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:22,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:22,718 INFO L87 Difference]: Start difference. First operand 2216 states and 3196 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 18:45:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:22,961 INFO L93 Difference]: Finished difference Result 2736 states and 3942 transitions. [2022-03-17 18:45:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:22,961 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 293 [2022-03-17 18:45:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:22,968 INFO L225 Difference]: With dead ends: 2736 [2022-03-17 18:45:22,968 INFO L226 Difference]: Without dead ends: 2736 [2022-03-17 18:45:22,969 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:22,969 INFO L912 BasicCegarLoop]: 404 mSDtfsCounter, 381 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:22,969 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 411 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:22,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-03-17 18:45:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-03-17 18:45:22,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2731 states have (on average 1.4419626510435737) internal successors, (3938), 2731 states have internal predecessors, (3938), 3 states have call successors, (3), 3 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 18:45:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3942 transitions. [2022-03-17 18:45:22,998 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3942 transitions. Word has length 293 [2022-03-17 18:45:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:22,998 INFO L478 AbstractCegarLoop]: Abstraction has 2736 states and 3942 transitions. [2022-03-17 18:45:22,998 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 18:45:22,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3942 transitions. [2022-03-17 18:45:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-17 18:45:23,002 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,002 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:23,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:45:23,002 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:23,003 INFO L85 PathProgramCache]: Analyzing trace with hash -905428137, now seen corresponding path program 1 times [2022-03-17 18:45:23,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:23,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004140183] [2022-03-17 18:45:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-03-17 18:45:23,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:23,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004140183] [2022-03-17 18:45:23,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004140183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:23,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:23,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:23,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145096586] [2022-03-17 18:45:23,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:23,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:23,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:23,078 INFO L87 Difference]: Start difference. First operand 2736 states and 3942 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:23,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:23,249 INFO L93 Difference]: Finished difference Result 3225 states and 4645 transitions. [2022-03-17 18:45:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:23,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 293 [2022-03-17 18:45:23,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:23,257 INFO L225 Difference]: With dead ends: 3225 [2022-03-17 18:45:23,257 INFO L226 Difference]: Without dead ends: 3225 [2022-03-17 18:45:23,257 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:23,257 INFO L912 BasicCegarLoop]: 407 mSDtfsCounter, 390 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:23,258 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-03-17 18:45:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3225. [2022-03-17 18:45:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3220 states have (on average 1.441304347826087) internal successors, (4641), 3220 states have internal predecessors, (4641), 3 states have call successors, (3), 3 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 18:45:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4645 transitions. [2022-03-17 18:45:23,323 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4645 transitions. Word has length 293 [2022-03-17 18:45:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:23,324 INFO L478 AbstractCegarLoop]: Abstraction has 3225 states and 4645 transitions. [2022-03-17 18:45:23,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4645 transitions. [2022-03-17 18:45:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-17 18:45:23,327 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,328 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:23,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:45:23,328 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash 203387062, now seen corresponding path program 1 times [2022-03-17 18:45:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:23,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492324150] [2022-03-17 18:45:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-03-17 18:45:23,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:23,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492324150] [2022-03-17 18:45:23,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492324150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:23,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:23,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:23,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106755450] [2022-03-17 18:45:23,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:23,383 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:23,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:23,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:23,384 INFO L87 Difference]: Start difference. First operand 3225 states and 4645 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:23,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:23,607 INFO L93 Difference]: Finished difference Result 3716 states and 5350 transitions. [2022-03-17 18:45:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:23,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 293 [2022-03-17 18:45:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:23,627 INFO L225 Difference]: With dead ends: 3716 [2022-03-17 18:45:23,628 INFO L226 Difference]: Without dead ends: 3716 [2022-03-17 18:45:23,629 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:23,630 INFO L912 BasicCegarLoop]: 407 mSDtfsCounter, 392 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:23,630 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2022-03-17 18:45:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3716. [2022-03-17 18:45:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3711 states have (on average 1.4405820533548908) internal successors, (5346), 3711 states have internal predecessors, (5346), 3 states have call successors, (3), 3 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 18:45:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 5350 transitions. [2022-03-17 18:45:23,663 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 5350 transitions. Word has length 293 [2022-03-17 18:45:23,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:23,664 INFO L478 AbstractCegarLoop]: Abstraction has 3716 states and 5350 transitions. [2022-03-17 18:45:23,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 5350 transitions. [2022-03-17 18:45:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-17 18:45:23,668 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,668 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:23,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:45:23,668 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:23,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:23,669 INFO L85 PathProgramCache]: Analyzing trace with hash -783195627, now seen corresponding path program 1 times [2022-03-17 18:45:23,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:23,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958799022] [2022-03-17 18:45:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-03-17 18:45:23,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:23,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958799022] [2022-03-17 18:45:23,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958799022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:23,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:23,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695145817] [2022-03-17 18:45:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:23,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:23,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:23,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:23,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:23,711 INFO L87 Difference]: Start difference. First operand 3716 states and 5350 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 18:45:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:23,922 INFO L93 Difference]: Finished difference Result 4209 states and 6057 transitions. [2022-03-17 18:45:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:23,922 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 293 [2022-03-17 18:45:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:23,928 INFO L225 Difference]: With dead ends: 4209 [2022-03-17 18:45:23,928 INFO L226 Difference]: Without dead ends: 4209 [2022-03-17 18:45:23,928 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:23,930 INFO L912 BasicCegarLoop]: 407 mSDtfsCounter, 421 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:23,930 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 414 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2022-03-17 18:45:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2022-03-17 18:45:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4398192197906756) internal successors, (6053), 4204 states have internal predecessors, (6053), 3 states have call successors, (3), 3 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 18:45:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6057 transitions. [2022-03-17 18:45:23,969 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6057 transitions. Word has length 293 [2022-03-17 18:45:23,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:23,969 INFO L478 AbstractCegarLoop]: Abstraction has 4209 states and 6057 transitions. [2022-03-17 18:45:23,970 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 18:45:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6057 transitions. [2022-03-17 18:45:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-03-17 18:45:23,976 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,977 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1] [2022-03-17 18:45:23,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:45:23,977 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:23,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1983637430, now seen corresponding path program 1 times [2022-03-17 18:45:23,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:23,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891086685] [2022-03-17 18:45:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 26 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-03-17 18:45:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:24,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891086685] [2022-03-17 18:45:24,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891086685] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:24,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227837358] [2022-03-17 18:45:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:24,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:24,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:24,086 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 18:45:24,087 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 18:45:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:24,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:24,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-03-17 18:45:24,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:24,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227837358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:24,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:24,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:24,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323067476] [2022-03-17 18:45:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:24,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:24,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:24,752 INFO L87 Difference]: Start difference. First operand 4209 states and 6057 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 18:45:24,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:24,815 INFO L93 Difference]: Finished difference Result 4737 states and 6825 transitions. [2022-03-17 18:45:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:24,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 441 [2022-03-17 18:45:24,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:24,822 INFO L225 Difference]: With dead ends: 4737 [2022-03-17 18:45:24,822 INFO L226 Difference]: Without dead ends: 4737 [2022-03-17 18:45:24,822 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:24,822 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:24,822 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 382 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2022-03-17 18:45:24,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4737. [2022-03-17 18:45:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 4732 states have (on average 1.4414623837700762) internal successors, (6821), 4732 states have internal predecessors, (6821), 3 states have call successors, (3), 3 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 18:45:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 6825 transitions. [2022-03-17 18:45:24,858 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 6825 transitions. Word has length 441 [2022-03-17 18:45:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:24,858 INFO L478 AbstractCegarLoop]: Abstraction has 4737 states and 6825 transitions. [2022-03-17 18:45:24,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 18:45:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 6825 transitions. [2022-03-17 18:45:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-03-17 18:45:24,866 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:24,867 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:24,886 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 18:45:25,084 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,SelfDestructingSolverStorable36 [2022-03-17 18:45:25,084 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash -383092453, now seen corresponding path program 1 times [2022-03-17 18:45:25,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:25,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578525883] [2022-03-17 18:45:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1996 proven. 26 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-17 18:45:25,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:25,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578525883] [2022-03-17 18:45:25,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578525883] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:25,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869136015] [2022-03-17 18:45:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:25,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:25,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:25,176 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 18:45:25,224 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 18:45:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:25,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 809 proven. 0 refuted. 0 times theorem prover too weak. 2753 trivial. 0 not checked. [2022-03-17 18:45:25,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869136015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:25,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:25,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766156889] [2022-03-17 18:45:25,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:25,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:25,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:25,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:25,990 INFO L87 Difference]: Start difference. First operand 4737 states and 6825 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:45:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:26,051 INFO L93 Difference]: Finished difference Result 5265 states and 7596 transitions. [2022-03-17 18:45:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 592 [2022-03-17 18:45:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:26,061 INFO L225 Difference]: With dead ends: 5265 [2022-03-17 18:45:26,062 INFO L226 Difference]: Without dead ends: 5265 [2022-03-17 18:45:26,062 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:26,063 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:26,063 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 379 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2022-03-17 18:45:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 5265. [2022-03-17 18:45:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5260 states have (on average 1.4433460076045628) internal successors, (7592), 5260 states have internal predecessors, (7592), 3 states have call successors, (3), 3 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 18:45:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 7596 transitions. [2022-03-17 18:45:26,128 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 7596 transitions. Word has length 592 [2022-03-17 18:45:26,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:26,128 INFO L478 AbstractCegarLoop]: Abstraction has 5265 states and 7596 transitions. [2022-03-17 18:45:26,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 18:45:26,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 7596 transitions. [2022-03-17 18:45:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2022-03-17 18:45:26,138 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:26,138 INFO L500 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 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] [2022-03-17 18:45:26,158 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 18:45:26,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:26,356 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash -202144108, now seen corresponding path program 1 times [2022-03-17 18:45:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:26,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456640573] [2022-03-17 18:45:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2022-03-17 18:45:26,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:26,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456640573] [2022-03-17 18:45:26,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456640573] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:26,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493411614] [2022-03-17 18:45:26,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:26,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:26,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:26,460 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 18:45:26,492 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 18:45:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:26,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 1047 proven. 0 refuted. 0 times theorem prover too weak. 4631 trivial. 0 not checked. [2022-03-17 18:45:27,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:27,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493411614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:27,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:27,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:27,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597945731] [2022-03-17 18:45:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:27,423 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:27,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:27,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:27,423 INFO L87 Difference]: Start difference. First operand 5265 states and 7596 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 18:45:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:27,488 INFO L93 Difference]: Finished difference Result 5793 states and 8370 transitions. [2022-03-17 18:45:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:27,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 746 [2022-03-17 18:45:27,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:27,500 INFO L225 Difference]: With dead ends: 5793 [2022-03-17 18:45:27,500 INFO L226 Difference]: Without dead ends: 5793 [2022-03-17 18:45:27,500 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:27,501 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 161 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:27,501 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 376 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states. [2022-03-17 18:45:27,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5793. [2022-03-17 18:45:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5793 states, 5788 states have (on average 1.4454042847270214) internal successors, (8366), 5788 states have internal predecessors, (8366), 3 states have call successors, (3), 3 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 18:45:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5793 states to 5793 states and 8370 transitions. [2022-03-17 18:45:27,570 INFO L78 Accepts]: Start accepts. Automaton has 5793 states and 8370 transitions. Word has length 746 [2022-03-17 18:45:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:27,571 INFO L478 AbstractCegarLoop]: Abstraction has 5793 states and 8370 transitions. [2022-03-17 18:45:27,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 18:45:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5793 states and 8370 transitions. [2022-03-17 18:45:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2022-03-17 18:45:27,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:27,584 INFO L500 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 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] [2022-03-17 18:45:27,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-17 18:45:27,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-03-17 18:45:27,800 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1765124457, now seen corresponding path program 1 times [2022-03-17 18:45:27,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:27,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977817262] [2022-03-17 18:45:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-03-17 18:45:27,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:27,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977817262] [2022-03-17 18:45:27,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977817262] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:27,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981156263] [2022-03-17 18:45:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:27,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:27,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:27,936 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 18:45:27,984 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 18:45:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:28,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:28,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-03-17 18:45:29,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-03-17 18:45:29,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981156263] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:29,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:29,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-03-17 18:45:29,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276233501] [2022-03-17 18:45:29,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:29,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:45:29,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:29,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:45:29,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:29,981 INFO L87 Difference]: Start difference. First operand 5793 states and 8370 transitions. Second operand has 9 states, 9 states have (on average 41.666666666666664) internal successors, (375), 8 states have internal predecessors, (375), 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 18:45:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:30,819 INFO L93 Difference]: Finished difference Result 16472 states and 22611 transitions. [2022-03-17 18:45:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:45:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 41.666666666666664) internal successors, (375), 8 states have internal predecessors, (375), 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 903 [2022-03-17 18:45:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:30,845 INFO L225 Difference]: With dead ends: 16472 [2022-03-17 18:45:30,845 INFO L226 Difference]: Without dead ends: 14983 [2022-03-17 18:45:30,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1827 GetRequests, 1812 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-03-17 18:45:30,846 INFO L912 BasicCegarLoop]: 484 mSDtfsCounter, 1015 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:30,846 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 506 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 18:45:30,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14983 states. [2022-03-17 18:45:30,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14983 to 6568. [2022-03-17 18:45:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6568 states, 6563 states have (on average 1.4014932195642236) internal successors, (9198), 6563 states have internal predecessors, (9198), 3 states have call successors, (3), 3 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 18:45:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6568 states to 6568 states and 9202 transitions. [2022-03-17 18:45:30,949 INFO L78 Accepts]: Start accepts. Automaton has 6568 states and 9202 transitions. Word has length 903 [2022-03-17 18:45:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:30,949 INFO L478 AbstractCegarLoop]: Abstraction has 6568 states and 9202 transitions. [2022-03-17 18:45:30,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 41.666666666666664) internal successors, (375), 8 states have internal predecessors, (375), 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 18:45:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6568 states and 9202 transitions. [2022-03-17 18:45:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2022-03-17 18:45:30,964 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:30,964 INFO L500 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 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] [2022-03-17 18:45:30,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:31,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-03-17 18:45:31,184 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:31,185 INFO L85 PathProgramCache]: Analyzing trace with hash 371921449, now seen corresponding path program 1 times [2022-03-17 18:45:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:31,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871869257] [2022-03-17 18:45:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:31,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:31,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4418 proven. 0 refuted. 0 times theorem prover too weak. 3889 trivial. 0 not checked. [2022-03-17 18:45:31,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:31,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871869257] [2022-03-17 18:45:31,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871869257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:31,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:31,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085577114] [2022-03-17 18:45:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:31,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:31,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:31,310 INFO L87 Difference]: Start difference. First operand 6568 states and 9202 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (3), 2 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 18:45:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:31,510 INFO L93 Difference]: Finished difference Result 9262 states and 12750 transitions. [2022-03-17 18:45:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 903 [2022-03-17 18:45:31,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:31,523 INFO L225 Difference]: With dead ends: 9262 [2022-03-17 18:45:31,523 INFO L226 Difference]: Without dead ends: 9262 [2022-03-17 18:45:31,523 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:31,524 INFO L912 BasicCegarLoop]: 332 mSDtfsCounter, 428 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:31,524 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 339 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9262 states. [2022-03-17 18:45:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9262 to 9110. [2022-03-17 18:45:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9110 states, 9105 states have (on average 1.383196046128501) internal successors, (12594), 9105 states have internal predecessors, (12594), 3 states have call successors, (3), 3 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 18:45:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9110 states to 9110 states and 12598 transitions. [2022-03-17 18:45:31,637 INFO L78 Accepts]: Start accepts. Automaton has 9110 states and 12598 transitions. Word has length 903 [2022-03-17 18:45:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:31,637 INFO L478 AbstractCegarLoop]: Abstraction has 9110 states and 12598 transitions. [2022-03-17 18:45:31,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 3 states have internal predecessors, (201), 1 states have call successors, (3), 2 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 18:45:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 9110 states and 12598 transitions. [2022-03-17 18:45:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2022-03-17 18:45:31,657 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:31,657 INFO L500 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 41, 41, 37, 37, 37, 32, 32, 27, 27, 22, 22, 17, 17, 17, 17, 12, 11, 11, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:31,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:45:31,658 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1293795642, now seen corresponding path program 1 times [2022-03-17 18:45:31,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:31,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631080033] [2022-03-17 18:45:31,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:31,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:31,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16425 backedges. 6596 proven. 0 refuted. 0 times theorem prover too weak. 9829 trivial. 0 not checked. [2022-03-17 18:45:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:31,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631080033] [2022-03-17 18:45:31,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631080033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:31,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:31,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:31,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845499447] [2022-03-17 18:45:31,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:31,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:31,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:31,799 INFO L87 Difference]: Start difference. First operand 9110 states and 12598 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 18:45:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:32,042 INFO L93 Difference]: Finished difference Result 9300 states and 12656 transitions. [2022-03-17 18:45:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:32,042 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 1151 [2022-03-17 18:45:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:32,055 INFO L225 Difference]: With dead ends: 9300 [2022-03-17 18:45:32,056 INFO L226 Difference]: Without dead ends: 9300 [2022-03-17 18:45:32,056 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:32,056 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 330 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:32,057 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 226 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:32,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9300 states. [2022-03-17 18:45:32,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9300 to 9110. [2022-03-17 18:45:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9110 states, 9105 states have (on average 1.3645249862712796) internal successors, (12424), 9105 states have internal predecessors, (12424), 3 states have call successors, (3), 3 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 18:45:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9110 states to 9110 states and 12428 transitions. [2022-03-17 18:45:32,187 INFO L78 Accepts]: Start accepts. Automaton has 9110 states and 12428 transitions. Word has length 1151 [2022-03-17 18:45:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:32,187 INFO L478 AbstractCegarLoop]: Abstraction has 9110 states and 12428 transitions. [2022-03-17 18:45:32,187 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 18:45:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9110 states and 12428 transitions. [2022-03-17 18:45:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2022-03-17 18:45:32,208 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:32,208 INFO L500 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 42, 42, 42, 42, 42, 42, 42, 37, 37, 37, 32, 32, 27, 27, 22, 22, 17, 17, 17, 17, 12, 11, 11, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:32,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:45:32,209 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash -615695354, now seen corresponding path program 1 times [2022-03-17 18:45:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:32,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380227837] [2022-03-17 18:45:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 17509 backedges. 6635 proven. 0 refuted. 0 times theorem prover too weak. 10874 trivial. 0 not checked. [2022-03-17 18:45:32,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:32,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380227837] [2022-03-17 18:45:32,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380227837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:32,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:32,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:32,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659979781] [2022-03-17 18:45:32,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:32,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:32,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:32,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:32,367 INFO L87 Difference]: Start difference. First operand 9110 states and 12428 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (3), 2 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 18:45:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:32,513 INFO L93 Difference]: Finished difference Result 9346 states and 12637 transitions. [2022-03-17 18:45:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1207 [2022-03-17 18:45:32,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:32,524 INFO L225 Difference]: With dead ends: 9346 [2022-03-17 18:45:32,524 INFO L226 Difference]: Without dead ends: 9346 [2022-03-17 18:45:32,526 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:32,530 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 419 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:32,531 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 223 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2022-03-17 18:45:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 9110. [2022-03-17 18:45:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9110 states, 9105 states have (on average 1.357276221856123) internal successors, (12358), 9105 states have internal predecessors, (12358), 3 states have call successors, (3), 3 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 18:45:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9110 states to 9110 states and 12362 transitions. [2022-03-17 18:45:32,606 INFO L78 Accepts]: Start accepts. Automaton has 9110 states and 12362 transitions. Word has length 1207 [2022-03-17 18:45:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:32,607 INFO L478 AbstractCegarLoop]: Abstraction has 9110 states and 12362 transitions. [2022-03-17 18:45:32,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (3), 2 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 18:45:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9110 states and 12362 transitions. [2022-03-17 18:45:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1374 [2022-03-17 18:45:32,627 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:32,627 INFO L500 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 46, 46, 46, 46, 46, 46, 46, 41, 41, 41, 36, 36, 31, 31, 26, 26, 21, 21, 21, 21, 16, 15, 15, 14, 14, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:45:32,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:45:32,628 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:32,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1446317594, now seen corresponding path program 1 times [2022-03-17 18:45:32,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:32,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250148786] [2022-03-17 18:45:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 21645 backedges. 8212 proven. 0 refuted. 0 times theorem prover too weak. 13433 trivial. 0 not checked. [2022-03-17 18:45:32,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:32,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250148786] [2022-03-17 18:45:32,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250148786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:32,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:32,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:32,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305429523] [2022-03-17 18:45:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:32,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:32,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:32,852 INFO L87 Difference]: Start difference. First operand 9110 states and 12362 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 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 18:45:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:32,993 INFO L93 Difference]: Finished difference Result 9239 states and 12476 transitions. [2022-03-17 18:45:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 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 1373 [2022-03-17 18:45:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:33,005 INFO L225 Difference]: With dead ends: 9239 [2022-03-17 18:45:33,005 INFO L226 Difference]: Without dead ends: 9239 [2022-03-17 18:45:33,005 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:33,006 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 434 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:33,006 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 220 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-03-17 18:45:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 9110. [2022-03-17 18:45:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9110 states, 9105 states have (on average 1.3535420098846787) internal successors, (12324), 9105 states have internal predecessors, (12324), 3 states have call successors, (3), 3 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 18:45:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9110 states to 9110 states and 12328 transitions. [2022-03-17 18:45:33,078 INFO L78 Accepts]: Start accepts. Automaton has 9110 states and 12328 transitions. Word has length 1373 [2022-03-17 18:45:33,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:33,079 INFO L478 AbstractCegarLoop]: Abstraction has 9110 states and 12328 transitions. [2022-03-17 18:45:33,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 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 18:45:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9110 states and 12328 transitions. [2022-03-17 18:45:33,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1492 [2022-03-17 18:45:33,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:33,101 INFO L500 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 49, 49, 45, 45, 45, 40, 40, 35, 35, 30, 30, 25, 25, 25, 25, 20, 19, 19, 18, 18, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:45:33,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:45:33,101 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:33,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1179217455, now seen corresponding path program 1 times [2022-03-17 18:45:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:33,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004074865] [2022-03-17 18:45:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 25077 backedges. 9960 proven. 0 refuted. 0 times theorem prover too weak. 15117 trivial. 0 not checked. [2022-03-17 18:45:33,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:33,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004074865] [2022-03-17 18:45:33,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004074865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:33,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:33,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:33,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289943503] [2022-03-17 18:45:33,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:33,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:33,304 INFO L87 Difference]: Start difference. First operand 9110 states and 12328 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 1 states have call successors, (3), 2 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 18:45:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:33,508 INFO L93 Difference]: Finished difference Result 9410 states and 12635 transitions. [2022-03-17 18:45:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1491 [2022-03-17 18:45:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:33,516 INFO L225 Difference]: With dead ends: 9410 [2022-03-17 18:45:33,516 INFO L226 Difference]: Without dead ends: 9344 [2022-03-17 18:45:33,516 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:33,517 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 266 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:33,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 261 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9344 states. [2022-03-17 18:45:33,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9344 to 9264. [2022-03-17 18:45:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9264 states, 9259 states have (on average 1.3466897073118047) internal successors, (12469), 9259 states have internal predecessors, (12469), 3 states have call successors, (3), 3 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 18:45:33,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 12473 transitions. [2022-03-17 18:45:33,580 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 12473 transitions. Word has length 1491 [2022-03-17 18:45:33,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:33,581 INFO L478 AbstractCegarLoop]: Abstraction has 9264 states and 12473 transitions. [2022-03-17 18:45:33,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 1 states have call successors, (3), 2 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 18:45:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 12473 transitions. [2022-03-17 18:45:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1552 [2022-03-17 18:45:33,603 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:33,603 INFO L500 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 53, 53, 50, 50, 50, 50, 50, 50, 45, 45, 45, 40, 40, 35, 35, 30, 30, 25, 25, 25, 25, 20, 19, 19, 18, 18, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:45:33,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:45:33,604 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1656302953, now seen corresponding path program 1 times [2022-03-17 18:45:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:33,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248785692] [2022-03-17 18:45:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:33,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 26559 backedges. 10094 proven. 0 refuted. 0 times theorem prover too weak. 16465 trivial. 0 not checked. [2022-03-17 18:45:33,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:33,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248785692] [2022-03-17 18:45:33,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248785692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:33,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:33,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:33,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815346303] [2022-03-17 18:45:33,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:33,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:33,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:33,824 INFO L87 Difference]: Start difference. First operand 9264 states and 12473 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (3), 2 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 18:45:33,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:33,956 INFO L93 Difference]: Finished difference Result 7372 states and 9591 transitions. [2022-03-17 18:45:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:33,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1551 [2022-03-17 18:45:33,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:33,958 INFO L225 Difference]: With dead ends: 7372 [2022-03-17 18:45:33,958 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 18:45:33,958 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:45:33,958 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 416 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:33,958 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 196 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 18:45:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 18:45:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 18:45:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-17 18:45:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 18:45:33,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1551 [2022-03-17 18:45:33,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:33,959 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 18:45:33,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (3), 2 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 18:45:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 18:45:33,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 18:45:33,961 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 18:45:33,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:45:33,963 INFO L718 BasicCegarLoop]: Path program 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] [2022-03-17 18:45:33,966 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 18:45:33,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:33 BasicIcfg [2022-03-17 18:45:33,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 18:45:33,969 INFO L158 Benchmark]: Toolchain (without parser) took 23575.60ms. Allocated memory was 204.5MB in the beginning and 599.8MB in the end (delta: 395.3MB). Free memory was 150.6MB in the beginning and 289.3MB in the end (delta: -138.7MB). Peak memory consumption was 257.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,969 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 204.5MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 18:45:33,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.99ms. Allocated memory is still 204.5MB. Free memory was 150.3MB in the beginning and 172.0MB in the end (delta: -21.7MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,969 INFO L158 Benchmark]: Boogie Preprocessor took 66.10ms. Allocated memory is still 204.5MB. Free memory was 172.0MB in the beginning and 169.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,970 INFO L158 Benchmark]: RCFGBuilder took 518.41ms. Allocated memory is still 204.5MB. Free memory was 169.6MB in the beginning and 140.1MB in the end (delta: 29.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,970 INFO L158 Benchmark]: IcfgTransformer took 27.65ms. Allocated memory is still 204.5MB. Free memory was 139.7MB in the beginning and 136.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,970 INFO L158 Benchmark]: TraceAbstraction took 22638.06ms. Allocated memory was 204.5MB in the beginning and 599.8MB in the end (delta: 395.3MB). Free memory was 136.1MB in the beginning and 289.3MB in the end (delta: -153.2MB). Peak memory consumption was 243.0MB. Max. memory is 8.0GB. [2022-03-17 18:45:33,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 204.5MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 304.99ms. Allocated memory is still 204.5MB. Free memory was 150.3MB in the beginning and 172.0MB in the end (delta: -21.7MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.10ms. Allocated memory is still 204.5MB. Free memory was 172.0MB in the beginning and 169.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 518.41ms. Allocated memory is still 204.5MB. Free memory was 169.6MB in the beginning and 140.1MB in the end (delta: 29.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * IcfgTransformer took 27.65ms. Allocated memory is still 204.5MB. Free memory was 139.7MB in the beginning and 136.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 22638.06ms. Allocated memory was 204.5MB in the beginning and 599.8MB in the end (delta: 395.3MB). Free memory was 136.1MB in the beginning and 289.3MB in the end (delta: -153.2MB). Peak memory consumption was 243.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 679]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 46, TraceHistogramMax: 54, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26970 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26970 mSDsluCounter, 11702 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1297 mSDsCounter, 1885 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14550 IncrementalHoareTripleChecker+Invalid, 16435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1885 mSolverCounterUnsat, 10405 mSDtfsCounter, 14550 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4184 GetRequests, 3926 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9264occurred in iteration=45, InterpolantAutomatonStates: 239, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 46 MinimizatonAttempts, 9865 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 18634 NumberOfCodeBlocks, 18634 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 19485 ConstructedInterpolants, 0 QuantifiedInterpolants, 24961 SizeOfPredicates, 1 NumberOfNonLiveVariables, 4865 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 52 InterpolantComputations, 45 PerfectInterpolantSequences, 171221/171403 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-17 18:45:34,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...