/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_clnt_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:15:53,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:15:53,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:15:53,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:15:53,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:15:53,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:15:53,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:15:53,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:15:53,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:15:53,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:15:53,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:15:53,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:15:53,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:15:53,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:15:53,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:15:53,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:15:53,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:15:53,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:15:53,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:15:53,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:15:53,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:15:53,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:15:53,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:15:53,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:15:53,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:15:53,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:15:53,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:15:53,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:15:53,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:15:53,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:15:53,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:15:53,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:15:53,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:15:53,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:15:53,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:15:53,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:15:53,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:15:53,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:15:53,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:15:53,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:15:53,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:15:53,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:15:53,839 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:15:53,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:15:53,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:15:53,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:15:53,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:15:53,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:15:53,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:15:53,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:15:53,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:15:53,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:15:53,842 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:15:53,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:15:53,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:15:53,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:15:53,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:15:53,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:15:53,845 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:15:53,845 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:15:54,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:15:54,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:15:54,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:15:54,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:15:54,090 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:15:54,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-01-31 16:15:54,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ee31cc6/30e1017cb5fb4bbb9aa68d25e9bba16d/FLAGd1cb77f9a [2022-01-31 16:15:54,501 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:15:54,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-01-31 16:15:54,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ee31cc6/30e1017cb5fb4bbb9aa68d25e9bba16d/FLAGd1cb77f9a [2022-01-31 16:15:54,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1ee31cc6/30e1017cb5fb4bbb9aa68d25e9bba16d [2022-01-31 16:15:54,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:15:54,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:15:54,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:15:54,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:15:54,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:15:54,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:15:54" (1/1) ... [2022-01-31 16:15:54,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374064ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:54, skipping insertion in model container [2022-01-31 16:15:54,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:15:54" (1/1) ... [2022-01-31 16:15:54,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:15:54,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:15:55,155 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_clnt_1.cil-1.c[35497,35510] [2022-01-31 16:15:55,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:15:55,172 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:15:55,242 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_clnt_1.cil-1.c[35497,35510] [2022-01-31 16:15:55,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:15:55,255 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:15:55,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55 WrapperNode [2022-01-31 16:15:55,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:15:55,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:15:55,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:15:55,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:15:55,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:15:55,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:15:55,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:15:55,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:15:55,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:15:55,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:15:55,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:15:55,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:15:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:15:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:15:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:15:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 16:15:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:15:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:15:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:15:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:15:55,478 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:15:55,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:15:55,595 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:15:55,876 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 16:15:55,876 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 16:15:55,879 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:15:55,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:15:55,885 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:15:55,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:15:55 BoogieIcfgContainer [2022-01-31 16:15:55,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:15:55,888 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:15:55,888 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:15:55,889 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:15:55,891 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:15:55" (1/1) ... [2022-01-31 16:15:55,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:15:55 BasicIcfg [2022-01-31 16:15:55,929 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:15:55,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:15:55,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:15:55,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:15:55,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:15:54" (1/4) ... [2022-01-31 16:15:55,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafd3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:15:55, skipping insertion in model container [2022-01-31 16:15:55,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:15:55" (2/4) ... [2022-01-31 16:15:55,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafd3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:15:55, skipping insertion in model container [2022-01-31 16:15:55,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:15:55" (3/4) ... [2022-01-31 16:15:55,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafd3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:15:55, skipping insertion in model container [2022-01-31 16:15:55,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:15:55" (4/4) ... [2022-01-31 16:15:55,937 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.cJordan [2022-01-31 16:15:55,941 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:15:55,941 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:15:55,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:15:55,988 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:15:55,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:15:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 128 states have (on average 1.703125) internal successors, (218), 129 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:15:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 16:15:56,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:56,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:56,012 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:56,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1429632901, now seen corresponding path program 1 times [2022-01-31 16:15:56,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:56,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629058537] [2022-01-31 16:15:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:56,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:56,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:15:56,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:56,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629058537] [2022-01-31 16:15:56,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629058537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:56,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:56,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:56,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266849540] [2022-01-31 16:15:56,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:56,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:56,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:56,316 INFO L87 Difference]: Start difference. First operand has 136 states, 128 states have (on average 1.703125) internal successors, (218), 129 states have internal predecessors, (218), 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 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:56,668 INFO L93 Difference]: Finished difference Result 250 states and 410 transitions. [2022-01-31 16:15:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:56,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 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 30 [2022-01-31 16:15:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:56,679 INFO L225 Difference]: With dead ends: 250 [2022-01-31 16:15:56,679 INFO L226 Difference]: Without dead ends: 217 [2022-01-31 16:15:56,680 INFO L932 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 [2022-01-31 16:15:56,683 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 575 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:56,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 223 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:15:56,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-31 16:15:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2022-01-31 16:15:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.4952830188679245) internal successors, (317), 212 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 321 transitions. [2022-01-31 16:15:56,727 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 321 transitions. Word has length 30 [2022-01-31 16:15:56,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:56,727 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 321 transitions. [2022-01-31 16:15:56,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 321 transitions. [2022-01-31 16:15:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 16:15:56,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:56,730 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:56,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:15:56,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash -249836072, now seen corresponding path program 1 times [2022-01-31 16:15:56,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:56,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323767779] [2022-01-31 16:15:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:56,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:15:56,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:56,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323767779] [2022-01-31 16:15:56,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323767779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:56,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:56,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:56,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278108593] [2022-01-31 16:15:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:56,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:56,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:56,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:56,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:56,810 INFO L87 Difference]: Start difference. First operand 217 states and 321 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:57,031 INFO L93 Difference]: Finished difference Result 242 states and 354 transitions. [2022-01-31 16:15:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:57,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 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 44 [2022-01-31 16:15:57,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:57,036 INFO L225 Difference]: With dead ends: 242 [2022-01-31 16:15:57,037 INFO L226 Difference]: Without dead ends: 242 [2022-01-31 16:15:57,040 INFO L932 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 [2022-01-31 16:15:57,042 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 188 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:57,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 192 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:57,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-01-31 16:15:57,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 234. [2022-01-31 16:15:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.480349344978166) internal successors, (339), 229 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 343 transitions. [2022-01-31 16:15:57,086 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 343 transitions. Word has length 44 [2022-01-31 16:15:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:57,086 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 343 transitions. [2022-01-31 16:15:57,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 343 transitions. [2022-01-31 16:15:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:15:57,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:57,089 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:15:57,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:15:57,089 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:57,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash 55715608, now seen corresponding path program 1 times [2022-01-31 16:15:57,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:57,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480897521] [2022-01-31 16:15:57,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:57,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:15:57,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:57,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480897521] [2022-01-31 16:15:57,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480897521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:57,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:57,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:57,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493825872] [2022-01-31 16:15:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:57,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:57,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:57,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:57,232 INFO L87 Difference]: Start difference. First operand 234 states and 343 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:57,422 INFO L93 Difference]: Finished difference Result 255 states and 370 transitions. [2022-01-31 16:15:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (3), 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 61 [2022-01-31 16:15:57,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:57,425 INFO L225 Difference]: With dead ends: 255 [2022-01-31 16:15:57,425 INFO L226 Difference]: Without dead ends: 255 [2022-01-31 16:15:57,427 INFO L932 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 [2022-01-31 16:15:57,429 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:57,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 203 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-01-31 16:15:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-01-31 16:15:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.464) internal successors, (366), 250 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 370 transitions. [2022-01-31 16:15:57,439 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 370 transitions. Word has length 61 [2022-01-31 16:15:57,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:57,439 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 370 transitions. [2022-01-31 16:15:57,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 370 transitions. [2022-01-31 16:15:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:15:57,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:57,442 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:15:57,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:15:57,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:57,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:57,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2132924951, now seen corresponding path program 1 times [2022-01-31 16:15:57,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:57,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052946806] [2022-01-31 16:15:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:57,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,506 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:15:57,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:57,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052946806] [2022-01-31 16:15:57,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052946806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:57,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:57,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:57,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197715601] [2022-01-31 16:15:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:57,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:57,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:57,508 INFO L87 Difference]: Start difference. First operand 255 states and 370 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:57,747 INFO L93 Difference]: Finished difference Result 357 states and 494 transitions. [2022-01-31 16:15:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 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 61 [2022-01-31 16:15:57,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:57,751 INFO L225 Difference]: With dead ends: 357 [2022-01-31 16:15:57,751 INFO L226 Difference]: Without dead ends: 355 [2022-01-31 16:15:57,751 INFO L932 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 [2022-01-31 16:15:57,757 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:57,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 203 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-01-31 16:15:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 337. [2022-01-31 16:15:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.4036144578313252) internal successors, (466), 332 states have internal predecessors, (466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 470 transitions. [2022-01-31 16:15:57,772 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 470 transitions. Word has length 61 [2022-01-31 16:15:57,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:57,772 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 470 transitions. [2022-01-31 16:15:57,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:57,773 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 470 transitions. [2022-01-31 16:15:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 16:15:57,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:57,780 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:15:57,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:15:57,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -917277864, now seen corresponding path program 1 times [2022-01-31 16:15:57,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:57,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908636105] [2022-01-31 16:15:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:57,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:15:57,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:57,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908636105] [2022-01-31 16:15:57,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908636105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:57,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:57,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:57,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929791458] [2022-01-31 16:15:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:57,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:57,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:57,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:57,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:57,831 INFO L87 Difference]: Start difference. First operand 337 states and 470 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:58,020 INFO L93 Difference]: Finished difference Result 383 states and 529 transitions. [2022-01-31 16:15:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:58,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 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 61 [2022-01-31 16:15:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:58,025 INFO L225 Difference]: With dead ends: 383 [2022-01-31 16:15:58,025 INFO L226 Difference]: Without dead ends: 383 [2022-01-31 16:15:58,026 INFO L932 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 [2022-01-31 16:15:58,026 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 188 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:58,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 193 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-31 16:15:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 375. [2022-01-31 16:15:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.3891891891891892) internal successors, (514), 370 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 518 transitions. [2022-01-31 16:15:58,036 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 518 transitions. Word has length 61 [2022-01-31 16:15:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:58,037 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 518 transitions. [2022-01-31 16:15:58,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 518 transitions. [2022-01-31 16:15:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 16:15:58,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:58,041 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:58,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:15:58,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:58,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:58,041 INFO L85 PathProgramCache]: Analyzing trace with hash 414496236, now seen corresponding path program 1 times [2022-01-31 16:15:58,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:58,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809161913] [2022-01-31 16:15:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:58,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-31 16:15:58,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:58,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809161913] [2022-01-31 16:15:58,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809161913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:58,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:58,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:58,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469818319] [2022-01-31 16:15:58,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:58,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:58,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:58,129 INFO L87 Difference]: Start difference. First operand 375 states and 518 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:58,306 INFO L93 Difference]: Finished difference Result 481 states and 686 transitions. [2022-01-31 16:15:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-01-31 16:15:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:58,310 INFO L225 Difference]: With dead ends: 481 [2022-01-31 16:15:58,310 INFO L226 Difference]: Without dead ends: 479 [2022-01-31 16:15:58,310 INFO L932 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 [2022-01-31 16:15:58,312 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:58,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 180 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-01-31 16:15:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 453. [2022-01-31 16:15:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4464285714285714) internal successors, (648), 448 states have internal predecessors, (648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 652 transitions. [2022-01-31 16:15:58,322 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 652 transitions. Word has length 74 [2022-01-31 16:15:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:58,322 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 652 transitions. [2022-01-31 16:15:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 652 transitions. [2022-01-31 16:15:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 16:15:58,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:58,325 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 16:15:58,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:15:58,325 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash -284056342, now seen corresponding path program 1 times [2022-01-31 16:15:58,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:58,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56170771] [2022-01-31 16:15:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:58,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-31 16:15:58,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56170771] [2022-01-31 16:15:58,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56170771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:58,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:58,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:58,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454004509] [2022-01-31 16:15:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:58,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:58,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:58,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:58,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:58,402 INFO L87 Difference]: Start difference. First operand 453 states and 652 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:58,602 INFO L93 Difference]: Finished difference Result 501 states and 711 transitions. [2022-01-31 16:15:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 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 77 [2022-01-31 16:15:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:58,604 INFO L225 Difference]: With dead ends: 501 [2022-01-31 16:15:58,604 INFO L226 Difference]: Without dead ends: 501 [2022-01-31 16:15:58,605 INFO L932 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 [2022-01-31 16:15:58,605 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:58,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 192 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-01-31 16:15:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 495. [2022-01-31 16:15:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4285714285714286) internal successors, (700), 490 states have internal predecessors, (700), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 704 transitions. [2022-01-31 16:15:58,619 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 704 transitions. Word has length 77 [2022-01-31 16:15:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:58,620 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 704 transitions. [2022-01-31 16:15:58,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 704 transitions. [2022-01-31 16:15:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 16:15:58,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:58,624 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-01-31 16:15:58,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:15:58,625 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash 867065265, now seen corresponding path program 1 times [2022-01-31 16:15:58,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:58,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079246111] [2022-01-31 16:15:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:58,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,677 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-31 16:15:58,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:58,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079246111] [2022-01-31 16:15:58,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079246111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:58,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:58,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:58,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368501026] [2022-01-31 16:15:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:58,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:58,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:58,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:58,684 INFO L87 Difference]: Start difference. First operand 495 states and 704 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:58,836 INFO L93 Difference]: Finished difference Result 733 states and 1042 transitions. [2022-01-31 16:15:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 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 97 [2022-01-31 16:15:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:58,839 INFO L225 Difference]: With dead ends: 733 [2022-01-31 16:15:58,839 INFO L226 Difference]: Without dead ends: 733 [2022-01-31 16:15:58,840 INFO L932 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 [2022-01-31 16:15:58,840 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 294 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:58,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 322 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:15:58,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-01-31 16:15:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2022-01-31 16:15:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 728 states have (on average 1.4258241758241759) internal successors, (1038), 728 states have internal predecessors, (1038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1042 transitions. [2022-01-31 16:15:58,854 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1042 transitions. Word has length 97 [2022-01-31 16:15:58,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:58,854 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 1042 transitions. [2022-01-31 16:15:58,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1042 transitions. [2022-01-31 16:15:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-31 16:15:58,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:58,858 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2022-01-31 16:15:58,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:15:58,858 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2105140516, now seen corresponding path program 1 times [2022-01-31 16:15:58,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:58,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385467022] [2022-01-31 16:15:58,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:58,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-31 16:15:58,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:58,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385467022] [2022-01-31 16:15:58,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385467022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:58,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:58,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:58,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800211215] [2022-01-31 16:15:58,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:58,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:58,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:58,913 INFO L87 Difference]: Start difference. First operand 733 states and 1042 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:59,074 INFO L93 Difference]: Finished difference Result 972 states and 1386 transitions. [2022-01-31 16:15:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-01-31 16:15:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:59,078 INFO L225 Difference]: With dead ends: 972 [2022-01-31 16:15:59,078 INFO L226 Difference]: Without dead ends: 972 [2022-01-31 16:15:59,078 INFO L932 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 [2022-01-31 16:15:59,079 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 456 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:59,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 170 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:15:59,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-01-31 16:15:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2022-01-31 16:15:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.4291623578076524) internal successors, (1382), 967 states have internal predecessors, (1382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1386 transitions. [2022-01-31 16:15:59,097 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1386 transitions. Word has length 99 [2022-01-31 16:15:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:59,097 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1386 transitions. [2022-01-31 16:15:59,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1386 transitions. [2022-01-31 16:15:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 16:15:59,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:59,099 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:59,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:15:59,100 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:59,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1291902012, now seen corresponding path program 1 times [2022-01-31 16:15:59,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:59,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791603024] [2022-01-31 16:15:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:59,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-31 16:15:59,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:59,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791603024] [2022-01-31 16:15:59,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791603024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:59,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:59,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:59,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429797179] [2022-01-31 16:15:59,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:59,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:59,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:59,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:59,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:59,140 INFO L87 Difference]: Start difference. First operand 972 states and 1386 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:59,325 INFO L93 Difference]: Finished difference Result 1078 states and 1512 transitions. [2022-01-31 16:15:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:59,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-01-31 16:15:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:59,329 INFO L225 Difference]: With dead ends: 1078 [2022-01-31 16:15:59,329 INFO L226 Difference]: Without dead ends: 1078 [2022-01-31 16:15:59,330 INFO L932 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 [2022-01-31 16:15:59,330 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 186 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:59,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 192 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-01-31 16:15:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1064. [2022-01-31 16:15:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1059 states have (on average 1.4107648725212465) internal successors, (1494), 1059 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1498 transitions. [2022-01-31 16:15:59,349 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1498 transitions. Word has length 124 [2022-01-31 16:15:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:59,349 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1498 transitions. [2022-01-31 16:15:59,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1498 transitions. [2022-01-31 16:15:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:15:59,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:59,352 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:59,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:15:59,352 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash 28142000, now seen corresponding path program 1 times [2022-01-31 16:15:59,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:59,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052012472] [2022-01-31 16:15:59,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:59,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-01-31 16:15:59,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:59,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052012472] [2022-01-31 16:15:59,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052012472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:59,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:59,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:59,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429752549] [2022-01-31 16:15:59,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:59,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:59,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:59,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:59,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:59,423 INFO L87 Difference]: Start difference. First operand 1064 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:59,622 INFO L93 Difference]: Finished difference Result 1268 states and 1778 transitions. [2022-01-31 16:15:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:59,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-01-31 16:15:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:59,627 INFO L225 Difference]: With dead ends: 1268 [2022-01-31 16:15:59,627 INFO L226 Difference]: Without dead ends: 1260 [2022-01-31 16:15:59,627 INFO L932 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 [2022-01-31 16:15:59,628 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 222 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:59,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 203 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:59,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-01-31 16:15:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1220. [2022-01-31 16:15:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 1.4139917695473252) internal successors, (1718), 1215 states have internal predecessors, (1718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1722 transitions. [2022-01-31 16:15:59,651 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1722 transitions. Word has length 145 [2022-01-31 16:15:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:59,651 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1722 transitions. [2022-01-31 16:15:59,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1722 transitions. [2022-01-31 16:15:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 16:15:59,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:59,655 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:59,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:15:59,655 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:59,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -34972528, now seen corresponding path program 1 times [2022-01-31 16:15:59,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:59,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414888700] [2022-01-31 16:15:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:59,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-01-31 16:15:59,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:59,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414888700] [2022-01-31 16:15:59,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414888700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:59,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:59,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:59,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915251799] [2022-01-31 16:15:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:59,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:59,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:59,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:59,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:59,722 INFO L87 Difference]: Start difference. First operand 1220 states and 1722 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:15:59,908 INFO L93 Difference]: Finished difference Result 1340 states and 1862 transitions. [2022-01-31 16:15:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:15:59,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-01-31 16:15:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:15:59,913 INFO L225 Difference]: With dead ends: 1340 [2022-01-31 16:15:59,913 INFO L226 Difference]: Without dead ends: 1340 [2022-01-31 16:15:59,913 INFO L932 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 [2022-01-31 16:15:59,914 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:15:59,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:15:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-01-31 16:15:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1332. [2022-01-31 16:15:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1327 states have (on average 1.3941220798794274) internal successors, (1850), 1327 states have internal predecessors, (1850), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1854 transitions. [2022-01-31 16:15:59,937 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1854 transitions. Word has length 181 [2022-01-31 16:15:59,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:15:59,937 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 1854 transitions. [2022-01-31 16:15:59,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:15:59,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1854 transitions. [2022-01-31 16:15:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 16:15:59,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:15:59,941 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:15:59,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:15:59,941 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:15:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:15:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash 245377361, now seen corresponding path program 1 times [2022-01-31 16:15:59,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:15:59,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215393049] [2022-01-31 16:15:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:15:59,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:15:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:15:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:15:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-01-31 16:15:59,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:15:59,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215393049] [2022-01-31 16:15:59,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215393049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:15:59,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:15:59,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:15:59,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275758258] [2022-01-31 16:15:59,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:15:59,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:15:59,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:15:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:15:59,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:15:59,990 INFO L87 Difference]: Start difference. First operand 1332 states and 1854 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:00,188 INFO L93 Difference]: Finished difference Result 1468 states and 2014 transitions. [2022-01-31 16:16:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-01-31 16:16:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:00,194 INFO L225 Difference]: With dead ends: 1468 [2022-01-31 16:16:00,194 INFO L226 Difference]: Without dead ends: 1468 [2022-01-31 16:16:00,194 INFO L932 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 [2022-01-31 16:16:00,195 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:00,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 193 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-01-31 16:16:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1456. [2022-01-31 16:16:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1451 states have (on average 1.3742246726395588) internal successors, (1994), 1451 states have internal predecessors, (1994), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1998 transitions. [2022-01-31 16:16:00,221 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1998 transitions. Word has length 181 [2022-01-31 16:16:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:00,222 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 1998 transitions. [2022-01-31 16:16:00,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1998 transitions. [2022-01-31 16:16:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-01-31 16:16:00,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:00,225 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:00,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:16:00,226 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1018474241, now seen corresponding path program 1 times [2022-01-31 16:16:00,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:00,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615071443] [2022-01-31 16:16:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:00,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,338 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-01-31 16:16:00,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:00,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615071443] [2022-01-31 16:16:00,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615071443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:00,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:00,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:00,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629751667] [2022-01-31 16:16:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:00,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:00,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:00,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:00,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:00,340 INFO L87 Difference]: Start difference. First operand 1456 states and 1998 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:00,516 INFO L93 Difference]: Finished difference Result 2895 states and 3971 transitions. [2022-01-31 16:16:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-01-31 16:16:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:00,526 INFO L225 Difference]: With dead ends: 2895 [2022-01-31 16:16:00,526 INFO L226 Difference]: Without dead ends: 2895 [2022-01-31 16:16:00,527 INFO L932 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 [2022-01-31 16:16:00,527 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 296 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:00,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 332 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2022-01-31 16:16:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2893. [2022-01-31 16:16:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2888 states have (on average 1.3732686980609419) internal successors, (3966), 2888 states have internal predecessors, (3966), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3970 transitions. [2022-01-31 16:16:00,592 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3970 transitions. Word has length 211 [2022-01-31 16:16:00,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:00,592 INFO L470 AbstractCegarLoop]: Abstraction has 2893 states and 3970 transitions. [2022-01-31 16:16:00,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3970 transitions. [2022-01-31 16:16:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-01-31 16:16:00,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:00,598 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:00,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:16:00,598 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:00,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:00,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1298824130, now seen corresponding path program 1 times [2022-01-31 16:16:00,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:00,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921510318] [2022-01-31 16:16:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:00,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-01-31 16:16:00,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:00,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921510318] [2022-01-31 16:16:00,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921510318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:00,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:00,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:00,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005440679] [2022-01-31 16:16:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:00,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:00,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:00,649 INFO L87 Difference]: Start difference. First operand 2893 states and 3970 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:00,848 INFO L93 Difference]: Finished difference Result 3193 states and 4310 transitions. [2022-01-31 16:16:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:00,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 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 211 [2022-01-31 16:16:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:00,858 INFO L225 Difference]: With dead ends: 3193 [2022-01-31 16:16:00,859 INFO L226 Difference]: Without dead ends: 3193 [2022-01-31 16:16:00,860 INFO L932 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 [2022-01-31 16:16:00,861 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:00,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2022-01-31 16:16:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3177. [2022-01-31 16:16:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 3172 states have (on average 1.3524590163934427) internal successors, (4290), 3172 states have internal predecessors, (4290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4294 transitions. [2022-01-31 16:16:00,925 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4294 transitions. Word has length 211 [2022-01-31 16:16:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:00,925 INFO L470 AbstractCegarLoop]: Abstraction has 3177 states and 4294 transitions. [2022-01-31 16:16:00,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4294 transitions. [2022-01-31 16:16:00,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-01-31 16:16:00,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:00,933 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:00,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:16:00,933 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:00,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1065824251, now seen corresponding path program 1 times [2022-01-31 16:16:00,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:00,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604513148] [2022-01-31 16:16:00,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:00,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-01-31 16:16:00,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604513148] [2022-01-31 16:16:01,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604513148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:01,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:01,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:01,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123084686] [2022-01-31 16:16:01,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:01,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:01,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:01,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:01,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:01,002 INFO L87 Difference]: Start difference. First operand 3177 states and 4294 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) [2022-01-31 16:16:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:01,228 INFO L93 Difference]: Finished difference Result 3325 states and 4462 transitions. [2022-01-31 16:16:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:01,229 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 235 [2022-01-31 16:16:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:01,239 INFO L225 Difference]: With dead ends: 3325 [2022-01-31 16:16:01,240 INFO L226 Difference]: Without dead ends: 3325 [2022-01-31 16:16:01,240 INFO L932 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 [2022-01-31 16:16:01,241 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:01,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2022-01-31 16:16:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3309. [2022-01-31 16:16:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3304 states have (on average 1.3444309927360776) internal successors, (4442), 3304 states have internal predecessors, (4442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 4446 transitions. [2022-01-31 16:16:01,312 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 4446 transitions. Word has length 235 [2022-01-31 16:16:01,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:01,312 INFO L470 AbstractCegarLoop]: Abstraction has 3309 states and 4446 transitions. [2022-01-31 16:16:01,313 INFO L471 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) [2022-01-31 16:16:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 4446 transitions. [2022-01-31 16:16:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-01-31 16:16:01,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:01,320 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:01,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:16:01,320 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:01,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1242927237, now seen corresponding path program 1 times [2022-01-31 16:16:01,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:01,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743126786] [2022-01-31 16:16:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:01,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:01,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-01-31 16:16:01,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743126786] [2022-01-31 16:16:01,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743126786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:01,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:01,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:01,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768764778] [2022-01-31 16:16:01,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:01,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:01,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:01,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:01,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:01,399 INFO L87 Difference]: Start difference. First operand 3309 states and 4446 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:01,619 INFO L93 Difference]: Finished difference Result 3709 states and 4918 transitions. [2022-01-31 16:16:01,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:01,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-01-31 16:16:01,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:01,631 INFO L225 Difference]: With dead ends: 3709 [2022-01-31 16:16:01,631 INFO L226 Difference]: Without dead ends: 3709 [2022-01-31 16:16:01,631 INFO L932 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 [2022-01-31 16:16:01,632 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:01,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 193 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-31 16:16:01,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3621. [2022-01-31 16:16:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3301991150442478) internal successors, (4810), 3616 states have internal predecessors, (4810), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4814 transitions. [2022-01-31 16:16:01,697 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4814 transitions. Word has length 246 [2022-01-31 16:16:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:01,697 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4814 transitions. [2022-01-31 16:16:01,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4814 transitions. [2022-01-31 16:16:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-01-31 16:16:01,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:01,704 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:01,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:16:01,705 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:01,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2060787207, now seen corresponding path program 1 times [2022-01-31 16:16:01,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:01,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109097638] [2022-01-31 16:16:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:01,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-01-31 16:16:01,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:01,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109097638] [2022-01-31 16:16:01,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109097638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:01,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:01,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:01,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776128635] [2022-01-31 16:16:01,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:01,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:01,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:01,762 INFO L87 Difference]: Start difference. First operand 3621 states and 4814 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) [2022-01-31 16:16:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:01,952 INFO L93 Difference]: Finished difference Result 4029 states and 5262 transitions. [2022-01-31 16:16:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:01,952 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 260 [2022-01-31 16:16:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:01,975 INFO L225 Difference]: With dead ends: 4029 [2022-01-31 16:16:01,975 INFO L226 Difference]: Without dead ends: 4029 [2022-01-31 16:16:01,976 INFO L932 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 [2022-01-31 16:16:01,979 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 277 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:01,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 191 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-01-31 16:16:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3741. [2022-01-31 16:16:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3736 states have (on average 1.326017130620985) internal successors, (4954), 3736 states have internal predecessors, (4954), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4958 transitions. [2022-01-31 16:16:02,078 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4958 transitions. Word has length 260 [2022-01-31 16:16:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:02,079 INFO L470 AbstractCegarLoop]: Abstraction has 3741 states and 4958 transitions. [2022-01-31 16:16:02,080 INFO L471 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) [2022-01-31 16:16:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4958 transitions. [2022-01-31 16:16:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-01-31 16:16:02,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:02,087 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:02,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:16:02,087 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1573739583, now seen corresponding path program 1 times [2022-01-31 16:16:02,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:02,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638259614] [2022-01-31 16:16:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:02,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-01-31 16:16:02,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:02,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638259614] [2022-01-31 16:16:02,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638259614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:02,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:02,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:02,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550346434] [2022-01-31 16:16:02,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:02,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:02,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:02,154 INFO L87 Difference]: Start difference. First operand 3741 states and 4958 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:02,313 INFO L93 Difference]: Finished difference Result 6965 states and 9283 transitions. [2022-01-31 16:16:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:02,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 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 261 [2022-01-31 16:16:02,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:02,326 INFO L225 Difference]: With dead ends: 6965 [2022-01-31 16:16:02,326 INFO L226 Difference]: Without dead ends: 6965 [2022-01-31 16:16:02,326 INFO L932 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 [2022-01-31 16:16:02,327 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 258 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:02,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 323 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2022-01-31 16:16:02,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6963. [2022-01-31 16:16:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6958 states have (on average 1.3334291463064099) internal successors, (9278), 6958 states have internal predecessors, (9278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 9282 transitions. [2022-01-31 16:16:02,433 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 9282 transitions. Word has length 261 [2022-01-31 16:16:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:02,433 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 9282 transitions. [2022-01-31 16:16:02,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 9282 transitions. [2022-01-31 16:16:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-01-31 16:16:02,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:02,444 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:02,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:16:02,444 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:02,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2124357282, now seen corresponding path program 1 times [2022-01-31 16:16:02,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:02,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675615148] [2022-01-31 16:16:02,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:02,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-01-31 16:16:02,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675615148] [2022-01-31 16:16:02,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675615148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:02,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:02,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:02,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686831662] [2022-01-31 16:16:02,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:02,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:02,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:02,499 INFO L87 Difference]: Start difference. First operand 6963 states and 9282 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:02,708 INFO L93 Difference]: Finished difference Result 6971 states and 9098 transitions. [2022-01-31 16:16:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 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 262 [2022-01-31 16:16:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:02,720 INFO L225 Difference]: With dead ends: 6971 [2022-01-31 16:16:02,721 INFO L226 Difference]: Without dead ends: 6971 [2022-01-31 16:16:02,721 INFO L932 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 [2022-01-31 16:16:02,721 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:02,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:02,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2022-01-31 16:16:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6939. [2022-01-31 16:16:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6939 states, 6934 states have (on average 1.3068935679261608) internal successors, (9062), 6934 states have internal predecessors, (9062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6939 states to 6939 states and 9066 transitions. [2022-01-31 16:16:02,841 INFO L78 Accepts]: Start accepts. Automaton has 6939 states and 9066 transitions. Word has length 262 [2022-01-31 16:16:02,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:02,841 INFO L470 AbstractCegarLoop]: Abstraction has 6939 states and 9066 transitions. [2022-01-31 16:16:02,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:02,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6939 states and 9066 transitions. [2022-01-31 16:16:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-31 16:16:02,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:02,852 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:02,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:16:02,853 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:02,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:02,854 INFO L85 PathProgramCache]: Analyzing trace with hash 631259348, now seen corresponding path program 1 times [2022-01-31 16:16:02,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:02,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325047145] [2022-01-31 16:16:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:02,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 318 proven. 18 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-01-31 16:16:02,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325047145] [2022-01-31 16:16:02,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325047145] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431067264] [2022-01-31 16:16:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:02,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:02,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:02,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:02,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:16:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:03,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-31 16:16:03,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-01-31 16:16:03,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:03,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431067264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:03,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:03,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-01-31 16:16:03,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777018045] [2022-01-31 16:16:03,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:03,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:03,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:03,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:03,601 INFO L87 Difference]: Start difference. First operand 6939 states and 9066 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:03,747 INFO L93 Difference]: Finished difference Result 7117 states and 9278 transitions. [2022-01-31 16:16:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 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 285 [2022-01-31 16:16:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:03,759 INFO L225 Difference]: With dead ends: 7117 [2022-01-31 16:16:03,759 INFO L226 Difference]: Without dead ends: 7089 [2022-01-31 16:16:03,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:16:03,760 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 248 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:03,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 233 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7089 states. [2022-01-31 16:16:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7089 to 6945. [2022-01-31 16:16:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6940 states have (on average 1.3069164265129682) internal successors, (9070), 6940 states have internal predecessors, (9070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 9074 transitions. [2022-01-31 16:16:03,885 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 9074 transitions. Word has length 285 [2022-01-31 16:16:03,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:03,885 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 9074 transitions. [2022-01-31 16:16:03,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:03,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 9074 transitions. [2022-01-31 16:16:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-31 16:16:03,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:03,897 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:03,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:04,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-01-31 16:16:04,112 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash 223476135, now seen corresponding path program 1 times [2022-01-31 16:16:04,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:04,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39540424] [2022-01-31 16:16:04,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:04,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-31 16:16:04,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:04,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39540424] [2022-01-31 16:16:04,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39540424] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:04,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635419157] [2022-01-31 16:16:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:04,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:04,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:04,182 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) [2022-01-31 16:16:04,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:16:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:04,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:04,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-31 16:16:04,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-31 16:16:05,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635419157] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:05,236 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:05,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:05,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186669627] [2022-01-31 16:16:05,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:05,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:05,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:05,238 INFO L87 Difference]: Start difference. First operand 6945 states and 9074 transitions. Second operand has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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) [2022-01-31 16:16:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:05,971 INFO L93 Difference]: Finished difference Result 11485 states and 14935 transitions. [2022-01-31 16:16:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:16:05,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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 298 [2022-01-31 16:16:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:05,994 INFO L225 Difference]: With dead ends: 11485 [2022-01-31 16:16:05,994 INFO L226 Difference]: Without dead ends: 11429 [2022-01-31 16:16:05,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:05,996 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 489 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:05,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 386 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 16:16:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-01-31 16:16:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 9779. [2022-01-31 16:16:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9779 states, 9774 states have (on average 1.326989973398813) internal successors, (12970), 9774 states have internal predecessors, (12970), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 12974 transitions. [2022-01-31 16:16:06,173 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 12974 transitions. Word has length 298 [2022-01-31 16:16:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:06,173 INFO L470 AbstractCegarLoop]: Abstraction has 9779 states and 12974 transitions. [2022-01-31 16:16:06,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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) [2022-01-31 16:16:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 12974 transitions. [2022-01-31 16:16:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-01-31 16:16:06,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:06,188 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:06,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:06,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-01-31 16:16:06,412 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 11559004, now seen corresponding path program 2 times [2022-01-31 16:16:06,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:06,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213033614] [2022-01-31 16:16:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:06,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 407 proven. 5 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-31 16:16:06,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:06,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213033614] [2022-01-31 16:16:06,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213033614] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:06,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592988431] [2022-01-31 16:16:06,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 16:16:06,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:06,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:06,492 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) [2022-01-31 16:16:06,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:16:06,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 16:16:06,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 16:16:06,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:06,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-01-31 16:16:07,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:07,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592988431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:07,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:07,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:07,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044030489] [2022-01-31 16:16:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:07,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:07,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:07,055 INFO L87 Difference]: Start difference. First operand 9779 states and 12974 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-01-31 16:16:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:07,133 INFO L93 Difference]: Finished difference Result 7090 states and 9104 transitions. [2022-01-31 16:16:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:07,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 311 [2022-01-31 16:16:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:07,145 INFO L225 Difference]: With dead ends: 7090 [2022-01-31 16:16:07,145 INFO L226 Difference]: Without dead ends: 7090 [2022-01-31 16:16:07,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:07,147 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 13 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:07,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 257 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:16:07,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2022-01-31 16:16:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7050. [2022-01-31 16:16:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7045 states have (on average 1.2848828956706884) internal successors, (9052), 7045 states have internal predecessors, (9052), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 9056 transitions. [2022-01-31 16:16:07,237 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 9056 transitions. Word has length 311 [2022-01-31 16:16:07,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:07,238 INFO L470 AbstractCegarLoop]: Abstraction has 7050 states and 9056 transitions. [2022-01-31 16:16:07,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-01-31 16:16:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 9056 transitions. [2022-01-31 16:16:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-01-31 16:16:07,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:07,247 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:16:07,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:07,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:07,467 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 250389521, now seen corresponding path program 1 times [2022-01-31 16:16:07,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:07,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239388141] [2022-01-31 16:16:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:07,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:07,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239388141] [2022-01-31 16:16:07,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239388141] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022619221] [2022-01-31 16:16:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:07,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:07,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:07,541 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) [2022-01-31 16:16:07,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:16:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:07,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:07,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-01-31 16:16:08,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:16:08,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022619221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:08,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:16:08,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-01-31 16:16:08,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577028760] [2022-01-31 16:16:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:08,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:16:08,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:16:08,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:08,305 INFO L87 Difference]: Start difference. First operand 7050 states and 9056 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) [2022-01-31 16:16:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:08,337 INFO L93 Difference]: Finished difference Result 9083 states and 11629 transitions. [2022-01-31 16:16:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:16:08,338 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 378 [2022-01-31 16:16:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:08,354 INFO L225 Difference]: With dead ends: 9083 [2022-01-31 16:16:08,354 INFO L226 Difference]: Without dead ends: 9083 [2022-01-31 16:16:08,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:16:08,355 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 61 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:08,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 484 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:16:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9083 states. [2022-01-31 16:16:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9083 to 9083. [2022-01-31 16:16:08,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 9078 states have (on average 1.2805684071381362) internal successors, (11625), 9078 states have internal predecessors, (11625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 11629 transitions. [2022-01-31 16:16:08,493 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 11629 transitions. Word has length 378 [2022-01-31 16:16:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:08,493 INFO L470 AbstractCegarLoop]: Abstraction has 9083 states and 11629 transitions. [2022-01-31 16:16:08,493 INFO L471 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) [2022-01-31 16:16:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 11629 transitions. [2022-01-31 16:16:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-01-31 16:16:08,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:08,502 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:08,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:08,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:08,723 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1147203163, now seen corresponding path program 1 times [2022-01-31 16:16:08,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229301505] [2022-01-31 16:16:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:08,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:08,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:08,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229301505] [2022-01-31 16:16:08,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229301505] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:08,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185594346] [2022-01-31 16:16:08,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:08,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:08,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:08,805 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:08,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:16:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:08,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:08,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:09,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-31 16:16:10,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185594346] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:10,008 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:10,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-01-31 16:16:10,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108632737] [2022-01-31 16:16:10,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:10,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:16:10,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:10,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:16:10,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:16:10,010 INFO L87 Difference]: Start difference. First operand 9083 states and 11629 transitions. Second operand has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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) [2022-01-31 16:16:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:10,457 INFO L93 Difference]: Finished difference Result 10670 states and 13478 transitions. [2022-01-31 16:16:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 380 [2022-01-31 16:16:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:10,476 INFO L225 Difference]: With dead ends: 10670 [2022-01-31 16:16:10,477 INFO L226 Difference]: Without dead ends: 10662 [2022-01-31 16:16:10,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:16:10,477 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 604 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:10,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 222 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 16:16:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2022-01-31 16:16:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 9623. [2022-01-31 16:16:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9623 states, 9618 states have (on average 1.2763568309419837) internal successors, (12276), 9618 states have internal predecessors, (12276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9623 states to 9623 states and 12280 transitions. [2022-01-31 16:16:10,609 INFO L78 Accepts]: Start accepts. Automaton has 9623 states and 12280 transitions. Word has length 380 [2022-01-31 16:16:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:10,610 INFO L470 AbstractCegarLoop]: Abstraction has 9623 states and 12280 transitions. [2022-01-31 16:16:10,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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) [2022-01-31 16:16:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 9623 states and 12280 transitions. [2022-01-31 16:16:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-01-31 16:16:10,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:10,620 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:16:10,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:10,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-31 16:16:10,835 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash 742900883, now seen corresponding path program 1 times [2022-01-31 16:16:10,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:10,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446559943] [2022-01-31 16:16:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:10,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-01-31 16:16:10,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:10,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446559943] [2022-01-31 16:16:10,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446559943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:16:10,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:16:10,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:16:10,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689562876] [2022-01-31 16:16:10,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:16:10,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:16:10,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:10,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:16:10,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:16:10,916 INFO L87 Difference]: Start difference. First operand 9623 states and 12280 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:11,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:11,119 INFO L93 Difference]: Finished difference Result 7390 states and 9006 transitions. [2022-01-31 16:16:11,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:16:11,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 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 419 [2022-01-31 16:16:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:11,131 INFO L225 Difference]: With dead ends: 7390 [2022-01-31 16:16:11,131 INFO L226 Difference]: Without dead ends: 3828 [2022-01-31 16:16:11,131 INFO L932 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 [2022-01-31 16:16:11,132 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:11,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 191 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 16:16:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2022-01-31 16:16:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3684. [2022-01-31 16:16:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3679 states have (on average 1.259853220983963) internal successors, (4635), 3679 states have internal predecessors, (4635), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4639 transitions. [2022-01-31 16:16:11,172 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4639 transitions. Word has length 419 [2022-01-31 16:16:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:11,173 INFO L470 AbstractCegarLoop]: Abstraction has 3684 states and 4639 transitions. [2022-01-31 16:16:11,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:16:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4639 transitions. [2022-01-31 16:16:11,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-01-31 16:16:11,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:16:11,178 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:11,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:16:11,178 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:16:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:16:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -847208518, now seen corresponding path program 1 times [2022-01-31 16:16:11,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:16:11,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175778746] [2022-01-31 16:16:11,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:11,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:16:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:16:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-01-31 16:16:11,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:16:11,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175778746] [2022-01-31 16:16:11,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175778746] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:16:11,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26220566] [2022-01-31 16:16:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:16:11,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:16:11,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:16:11,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:16:11,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 16:16:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:16:11,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 16:16:11,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:16:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-01-31 16:16:12,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:16:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-01-31 16:16:12,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26220566] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:16:12,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:16:12,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-01-31 16:16:12,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430732894] [2022-01-31 16:16:12,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:16:12,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 16:16:12,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:16:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 16:16:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-31 16:16:12,632 INFO L87 Difference]: Start difference. First operand 3684 states and 4639 transitions. Second operand has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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) [2022-01-31 16:16:12,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:16:12,986 INFO L93 Difference]: Finished difference Result 290 states and 337 transitions. [2022-01-31 16:16:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:16:12,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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 448 [2022-01-31 16:16:12,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:16:12,987 INFO L225 Difference]: With dead ends: 290 [2022-01-31 16:16:12,987 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 16:16:12,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:16:12,988 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 263 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:16:12,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 151 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 16:16:12,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 16:16:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 16:16:12,988 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) [2022-01-31 16:16:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 16:16:12,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 448 [2022-01-31 16:16:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:16:12,989 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 16:16:12,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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) [2022-01-31 16:16:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 16:16:12,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 16:16:12,991 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:16:13,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 16:16:13,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-31 16:16:13,219 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:16:13,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:16:13,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:16:13 BasicIcfg [2022-01-31 16:16:13,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:16:13,222 INFO L158 Benchmark]: Toolchain (without parser) took 18321.61ms. Allocated memory was 181.4MB in the beginning and 449.8MB in the end (delta: 268.4MB). Free memory was 126.5MB in the beginning and 257.0MB in the end (delta: -130.5MB). Peak memory consumption was 138.3MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,223 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:16:13,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.53ms. Allocated memory is still 181.4MB. Free memory was 126.3MB in the beginning and 149.1MB in the end (delta: -22.8MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,223 INFO L158 Benchmark]: Boogie Preprocessor took 65.20ms. Allocated memory is still 181.4MB. Free memory was 149.1MB in the beginning and 147.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,223 INFO L158 Benchmark]: RCFGBuilder took 565.12ms. Allocated memory is still 181.4MB. Free memory was 146.4MB in the beginning and 121.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,223 INFO L158 Benchmark]: IcfgTransformer took 41.12ms. Allocated memory is still 181.4MB. Free memory was 121.3MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,224 INFO L158 Benchmark]: TraceAbstraction took 17291.83ms. Allocated memory was 181.4MB in the beginning and 449.8MB in the end (delta: 268.4MB). Free memory was 117.6MB in the beginning and 257.0MB in the end (delta: -139.4MB). Peak memory consumption was 130.1MB. Max. memory is 8.0GB. [2022-01-31 16:16:13,226 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 181.4MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.53ms. Allocated memory is still 181.4MB. Free memory was 126.3MB in the beginning and 149.1MB in the end (delta: -22.8MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.20ms. Allocated memory is still 181.4MB. Free memory was 149.1MB in the beginning and 147.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 565.12ms. Allocated memory is still 181.4MB. Free memory was 146.4MB in the beginning and 121.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * IcfgTransformer took 41.12ms. Allocated memory is still 181.4MB. Free memory was 121.3MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17291.83ms. Allocated memory was 181.4MB in the beginning and 449.8MB in the end (delta: 268.4MB). Free memory was 117.6MB in the beginning and 257.0MB in the end (delta: -139.4MB). Peak memory consumption was 130.1MB. 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: 554]: 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, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 27, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6826 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6824 mSDsluCounter, 6198 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 607 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6190 IncrementalHoareTripleChecker+Invalid, 6797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 607 mSolverCounterUnsat, 5654 mSDtfsCounter, 6190 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3424 GetRequests, 3319 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9779occurred in iteration=22, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 3601 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 7540 NumberOfCodeBlocks, 7540 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 8630 ConstructedInterpolants, 0 QuantifiedInterpolants, 12805 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4257 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 36 InterpolantComputations, 24 PerfectInterpolantSequences, 28794/28933 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! [2022-01-31 16:16:13,251 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...