/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_3.cil-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:54:13,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:54:13,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:54:13,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:54:13,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:54:13,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:54:13,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:54:13,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:54:13,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:54:13,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:54:13,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:54:13,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:54:13,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:54:13,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:54:13,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:54:13,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:54:13,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:54:13,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:54:13,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:54:13,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:54:13,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:54:13,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:54:13,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:54:13,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:54:13,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 19:54:13,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 19:54:13,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 19:54:13,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 19:54:13,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 19:54:13,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 19:54:13,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 19:54:13,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 19:54:13,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 19:54:13,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 19:54:13,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 19:54:13,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 19:54:13,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 19:54:13,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 19:54:13,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:54:13,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:54:13,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:54:13,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:54:13,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:54:13,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:54:13,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:54:13,111 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:54:13,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:54:13,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:54:13,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:54:13,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:54:13,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:54:13,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:54:13,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:54:13,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:54:13,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:54:13,113 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:54:13,113 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:54:13,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:54:13,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:54:13,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:54:13,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:54:13,331 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:54:13,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-3.c [2022-02-23 19:54:13,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9fa69447/bfd3ca6e0910400ab0f06c31bbfd91c3/FLAG50dfa2a8e [2022-02-23 19:54:13,733 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:54:13,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-3.c [2022-02-23 19:54:13,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9fa69447/bfd3ca6e0910400ab0f06c31bbfd91c3/FLAG50dfa2a8e [2022-02-23 19:54:14,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9fa69447/bfd3ca6e0910400ab0f06c31bbfd91c3 [2022-02-23 19:54:14,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:54:14,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:54:14,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:54:14,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:54:14,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:54:14,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7224d8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14, skipping insertion in model container [2022-02-23 19:54:14,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:54:14,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:54:14,366 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_3.cil-3.c[37595,37608] [2022-02-23 19:54:14,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:54:14,376 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:54:14,413 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_3.cil-3.c[37595,37608] [2022-02-23 19:54:14,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:54:14,429 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:54:14,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14 WrapperNode [2022-02-23 19:54:14,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:54:14,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:54:14,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:54:14,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:54:14,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:54:14,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:54:14,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:54:14,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:54:14,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (1/1) ... [2022-02-23 19:54:14,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:54:14,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:14,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 19:54:14,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 19:54:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:54:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:54:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:54:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-23 19:54:14,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:54:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:54:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:54:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:54:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:54:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:54:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:54:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:54:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-23 19:54:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:54:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:54:14,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:54:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:54:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:54:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:54:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:54:14,656 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:54:14,657 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:54:14,733 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:54:15,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-23 19:54:15,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-23 19:54:15,006 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:54:15,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:54:15,011 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:54:15,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:15 BoogieIcfgContainer [2022-02-23 19:54:15,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:54:15,013 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:54:15,014 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:54:15,016 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:54:15,018 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:15" (1/1) ... [2022-02-23 19:54:15,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:54:15 BasicIcfg [2022-02-23 19:54:15,041 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:54:15,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:54:15,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:54:15,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:54:15,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:54:14" (1/4) ... [2022-02-23 19:54:15,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ab40a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:54:15, skipping insertion in model container [2022-02-23 19:54:15,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:54:14" (2/4) ... [2022-02-23 19:54:15,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ab40a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:54:15, skipping insertion in model container [2022-02-23 19:54:15,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:54:15" (3/4) ... [2022-02-23 19:54:15,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ab40a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:54:15, skipping insertion in model container [2022-02-23 19:54:15,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:54:15" (4/4) ... [2022-02-23 19:54:15,047 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.cJordan [2022-02-23 19:54:15,051 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:54:15,051 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:54:15,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:54:15,086 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 19:54:15,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:54:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 19:54:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-23 19:54:15,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:15,109 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] [2022-02-23 19:54:15,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:15,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:15,114 INFO L85 PathProgramCache]: Analyzing trace with hash 420500670, now seen corresponding path program 1 times [2022-02-23 19:54:15,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:15,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896090249] [2022-02-23 19:54:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:15,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:54:15,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:15,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896090249] [2022-02-23 19:54:15,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896090249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:15,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:15,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:15,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078086720] [2022-02-23 19:54:15,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:15,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:15,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:15,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:15,404 INFO L87 Difference]: Start difference. First operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 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) [2022-02-23 19:54:15,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:15,697 INFO L93 Difference]: Finished difference Result 252 states and 412 transitions. [2022-02-23 19:54:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:15,699 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 [2022-02-23 19:54:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:15,708 INFO L225 Difference]: With dead ends: 252 [2022-02-23 19:54:15,708 INFO L226 Difference]: Without dead ends: 219 [2022-02-23 19:54:15,710 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 [2022-02-23 19:54:15,712 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 578 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:15,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 224 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:15,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-23 19:54:15,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-02-23 19:54:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4906542056074767) internal successors, (319), 214 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2022-02-23 19:54:15,755 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 30 [2022-02-23 19:54:15,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:15,755 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2022-02-23 19:54:15,756 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) [2022-02-23 19:54:15,756 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2022-02-23 19:54:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-23 19:54:15,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:15,757 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] [2022-02-23 19:54:15,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:54:15,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1296976805, now seen corresponding path program 1 times [2022-02-23 19:54:15,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:15,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77969342] [2022-02-23 19:54:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:15,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:54:15,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:15,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77969342] [2022-02-23 19:54:15,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77969342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:15,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:15,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:15,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861342816] [2022-02-23 19:54:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:15,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:15,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:15,857 INFO L87 Difference]: Start difference. First operand 219 states and 323 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) [2022-02-23 19:54:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:16,051 INFO L93 Difference]: Finished difference Result 246 states and 359 transitions. [2022-02-23 19:54:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:16,052 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 [2022-02-23 19:54:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:16,055 INFO L225 Difference]: With dead ends: 246 [2022-02-23 19:54:16,055 INFO L226 Difference]: Without dead ends: 246 [2022-02-23 19:54:16,055 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 [2022-02-23 19:54:16,056 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 193 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:16,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:16,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-02-23 19:54:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2022-02-23 19:54:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 231 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2022-02-23 19:54:16,070 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 44 [2022-02-23 19:54:16,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:16,071 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2022-02-23 19:54:16,071 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) [2022-02-23 19:54:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2022-02-23 19:54:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-23 19:54:16,072 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:16,072 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] [2022-02-23 19:54:16,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:54:16,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash -714612934, now seen corresponding path program 1 times [2022-02-23 19:54:16,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:16,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683439527] [2022-02-23 19:54:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:16,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-23 19:54:16,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:16,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683439527] [2022-02-23 19:54:16,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683439527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:16,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:16,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:16,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714408673] [2022-02-23 19:54:16,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:16,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:16,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:16,141 INFO L87 Difference]: Start difference. First operand 236 states and 345 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) [2022-02-23 19:54:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:16,324 INFO L93 Difference]: Finished difference Result 286 states and 408 transitions. [2022-02-23 19:54:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:16,325 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 [2022-02-23 19:54:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:16,326 INFO L225 Difference]: With dead ends: 286 [2022-02-23 19:54:16,326 INFO L226 Difference]: Without dead ends: 286 [2022-02-23 19:54:16,327 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 [2022-02-23 19:54:16,327 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 192 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:16,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 193 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:16,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-02-23 19:54:16,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 276. [2022-02-23 19:54:16,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.4428044280442804) internal successors, (391), 271 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 395 transitions. [2022-02-23 19:54:16,336 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 395 transitions. Word has length 61 [2022-02-23 19:54:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:16,337 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 395 transitions. [2022-02-23 19:54:16,337 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) [2022-02-23 19:54:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 395 transitions. [2022-02-23 19:54:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-23 19:54:16,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:16,338 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] [2022-02-23 19:54:16,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:54:16,339 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:16,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:16,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1959377415, now seen corresponding path program 1 times [2022-02-23 19:54:16,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:16,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592188915] [2022-02-23 19:54:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:16,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-23 19:54:16,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:16,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592188915] [2022-02-23 19:54:16,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592188915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:16,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:16,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:16,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975201163] [2022-02-23 19:54:16,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:16,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:16,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:16,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:16,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:16,427 INFO L87 Difference]: Start difference. First operand 276 states and 395 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) [2022-02-23 19:54:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:16,615 INFO L93 Difference]: Finished difference Result 376 states and 517 transitions. [2022-02-23 19:54:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:16,615 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 [2022-02-23 19:54:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:16,617 INFO L225 Difference]: With dead ends: 376 [2022-02-23 19:54:16,617 INFO L226 Difference]: Without dead ends: 374 [2022-02-23 19:54:16,617 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 [2022-02-23 19:54:16,618 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:16,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 205 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-02-23 19:54:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 356. [2022-02-23 19:54:16,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.393162393162393) internal successors, (489), 351 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2022-02-23 19:54:16,640 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 493 transitions. Word has length 61 [2022-02-23 19:54:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:16,640 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 493 transitions. [2022-02-23 19:54:16,640 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) [2022-02-23 19:54:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 493 transitions. [2022-02-23 19:54:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-23 19:54:16,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:16,642 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] [2022-02-23 19:54:16,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:54:16,643 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:16,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:16,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1525326578, now seen corresponding path program 1 times [2022-02-23 19:54:16,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:16,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651129726] [2022-02-23 19:54:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:16,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-23 19:54:16,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:16,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651129726] [2022-02-23 19:54:16,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651129726] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:16,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:16,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:16,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134323304] [2022-02-23 19:54:16,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:16,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:16,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:16,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:16,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:16,698 INFO L87 Difference]: Start difference. First operand 356 states and 493 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) [2022-02-23 19:54:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:16,862 INFO L93 Difference]: Finished difference Result 462 states and 661 transitions. [2022-02-23 19:54:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:16,863 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 [2022-02-23 19:54:16,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:16,869 INFO L225 Difference]: With dead ends: 462 [2022-02-23 19:54:16,869 INFO L226 Difference]: Without dead ends: 460 [2022-02-23 19:54:16,872 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 [2022-02-23 19:54:16,877 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:16,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-23 19:54:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 434. [2022-02-23 19:54:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.4522144522144522) internal successors, (623), 429 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 627 transitions. [2022-02-23 19:54:16,891 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 627 transitions. Word has length 74 [2022-02-23 19:54:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:16,892 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 627 transitions. [2022-02-23 19:54:16,892 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) [2022-02-23 19:54:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 627 transitions. [2022-02-23 19:54:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-23 19:54:16,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:16,893 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, 1] [2022-02-23 19:54:16,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:54:16,893 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:16,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash -373342279, now seen corresponding path program 1 times [2022-02-23 19:54:16,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:16,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016144307] [2022-02-23 19:54:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-23 19:54:16,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:16,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016144307] [2022-02-23 19:54:16,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016144307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:16,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:16,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:16,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952573905] [2022-02-23 19:54:16,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:16,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:16,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:16,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:16,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:16,969 INFO L87 Difference]: Start difference. First operand 434 states and 627 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:17,124 INFO L93 Difference]: Finished difference Result 482 states and 686 transitions. [2022-02-23 19:54:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-23 19:54:17,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:17,129 INFO L225 Difference]: With dead ends: 482 [2022-02-23 19:54:17,129 INFO L226 Difference]: Without dead ends: 482 [2022-02-23 19:54:17,129 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 [2022-02-23 19:54:17,131 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:17,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 193 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:17,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-02-23 19:54:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2022-02-23 19:54:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.4331210191082802) internal successors, (675), 471 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 679 transitions. [2022-02-23 19:54:17,146 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 679 transitions. Word has length 78 [2022-02-23 19:54:17,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:17,147 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 679 transitions. [2022-02-23 19:54:17,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 679 transitions. [2022-02-23 19:54:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-23 19:54:17,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:17,149 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] [2022-02-23 19:54:17,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:54:17,149 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1482970623, now seen corresponding path program 1 times [2022-02-23 19:54:17,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:17,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456190114] [2022-02-23 19:54:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-02-23 19:54:17,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:17,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456190114] [2022-02-23 19:54:17,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456190114] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:17,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:17,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:17,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472893038] [2022-02-23 19:54:17,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:17,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:17,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:17,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:17,203 INFO L87 Difference]: Start difference. First operand 476 states and 679 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:17,359 INFO L93 Difference]: Finished difference Result 715 states and 1018 transitions. [2022-02-23 19:54:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:17,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-23 19:54:17,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:17,362 INFO L225 Difference]: With dead ends: 715 [2022-02-23 19:54:17,362 INFO L226 Difference]: Without dead ends: 715 [2022-02-23 19:54:17,362 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 [2022-02-23 19:54:17,365 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 295 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:17,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 324 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-02-23 19:54:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2022-02-23 19:54:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 710 states have (on average 1.4281690140845071) internal successors, (1014), 710 states have internal predecessors, (1014), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1018 transitions. [2022-02-23 19:54:17,377 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1018 transitions. Word has length 98 [2022-02-23 19:54:17,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:17,378 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 1018 transitions. [2022-02-23 19:54:17,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1018 transitions. [2022-02-23 19:54:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-23 19:54:17,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:17,379 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] [2022-02-23 19:54:17,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:54:17,380 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1275544748, now seen corresponding path program 1 times [2022-02-23 19:54:17,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:17,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100104777] [2022-02-23 19:54:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-23 19:54:17,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:17,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100104777] [2022-02-23 19:54:17,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100104777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:17,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:17,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:17,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511996848] [2022-02-23 19:54:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:17,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:17,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:17,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:17,428 INFO L87 Difference]: Start difference. First operand 715 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:17,570 INFO L93 Difference]: Finished difference Result 736 states and 1045 transitions. [2022-02-23 19:54:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:17,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 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 [2022-02-23 19:54:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:17,572 INFO L225 Difference]: With dead ends: 736 [2022-02-23 19:54:17,572 INFO L226 Difference]: Without dead ends: 736 [2022-02-23 19:54:17,573 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 [2022-02-23 19:54:17,573 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:17,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:17,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-02-23 19:54:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-02-23 19:54:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 731 states have (on average 1.424076607387141) internal successors, (1041), 731 states have internal predecessors, (1041), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1045 transitions. [2022-02-23 19:54:17,583 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1045 transitions. Word has length 99 [2022-02-23 19:54:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:17,584 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1045 transitions. [2022-02-23 19:54:17,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1045 transitions. [2022-02-23 19:54:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-23 19:54:17,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:17,585 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, 1] [2022-02-23 19:54:17,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:54:17,585 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1728650536, now seen corresponding path program 1 times [2022-02-23 19:54:17,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:17,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506876951] [2022-02-23 19:54:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-02-23 19:54:17,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:17,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506876951] [2022-02-23 19:54:17,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506876951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:17,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:17,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:17,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727075576] [2022-02-23 19:54:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:17,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:17,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:17,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:17,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:17,631 INFO L87 Difference]: Start difference. First operand 736 states and 1045 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:17,774 INFO L93 Difference]: Finished difference Result 976 states and 1390 transitions. [2022-02-23 19:54:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:17,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-02-23 19:54:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:17,778 INFO L225 Difference]: With dead ends: 976 [2022-02-23 19:54:17,778 INFO L226 Difference]: Without dead ends: 976 [2022-02-23 19:54:17,778 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 [2022-02-23 19:54:17,780 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 459 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:17,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 171 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2022-02-23 19:54:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2022-02-23 19:54:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 971 states have (on average 1.427394438722966) internal successors, (1386), 971 states have internal predecessors, (1386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1390 transitions. [2022-02-23 19:54:17,805 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1390 transitions. Word has length 100 [2022-02-23 19:54:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:17,805 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1390 transitions. [2022-02-23 19:54:17,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1390 transitions. [2022-02-23 19:54:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-23 19:54:17,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:17,807 INFO L514 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:17,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:54:17,808 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1207748638, now seen corresponding path program 1 times [2022-02-23 19:54:17,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:17,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540061809] [2022-02-23 19:54:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:17,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-02-23 19:54:17,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:17,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540061809] [2022-02-23 19:54:17,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540061809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:17,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:17,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:17,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283176858] [2022-02-23 19:54:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:17,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:17,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:17,860 INFO L87 Difference]: Start difference. First operand 976 states and 1390 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:18,037 INFO L93 Difference]: Finished difference Result 1180 states and 1686 transitions. [2022-02-23 19:54:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:18,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-23 19:54:18,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:18,041 INFO L225 Difference]: With dead ends: 1180 [2022-02-23 19:54:18,041 INFO L226 Difference]: Without dead ends: 1172 [2022-02-23 19:54:18,041 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 [2022-02-23 19:54:18,042 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 235 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:18,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 205 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2022-02-23 19:54:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1132. [2022-02-23 19:54:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1127 states have (on average 1.442768411712511) internal successors, (1626), 1127 states have internal predecessors, (1626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1630 transitions. [2022-02-23 19:54:18,059 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1630 transitions. Word has length 155 [2022-02-23 19:54:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:18,059 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1630 transitions. [2022-02-23 19:54:18,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1630 transitions. [2022-02-23 19:54:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-02-23 19:54:18,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:18,061 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:18,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:54:18,062 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash 645369310, now seen corresponding path program 1 times [2022-02-23 19:54:18,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:18,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598852806] [2022-02-23 19:54:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:18,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-02-23 19:54:18,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:18,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598852806] [2022-02-23 19:54:18,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598852806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:18,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:18,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:18,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814659487] [2022-02-23 19:54:18,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:18,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:18,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:18,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:18,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:18,111 INFO L87 Difference]: Start difference. First operand 1132 states and 1630 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:18,275 INFO L93 Difference]: Finished difference Result 1238 states and 1756 transitions. [2022-02-23 19:54:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2022-02-23 19:54:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:18,279 INFO L225 Difference]: With dead ends: 1238 [2022-02-23 19:54:18,279 INFO L226 Difference]: Without dead ends: 1238 [2022-02-23 19:54:18,280 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 [2022-02-23 19:54:18,280 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 187 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:18,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 193 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:18,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2022-02-23 19:54:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1224. [2022-02-23 19:54:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1219 states have (on average 1.4257588187038557) internal successors, (1738), 1219 states have internal predecessors, (1738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1742 transitions. [2022-02-23 19:54:18,299 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1742 transitions. Word has length 191 [2022-02-23 19:54:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:18,299 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1742 transitions. [2022-02-23 19:54:18,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1742 transitions. [2022-02-23 19:54:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-23 19:54:18,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:18,302 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:18,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 19:54:18,302 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1315099224, now seen corresponding path program 1 times [2022-02-23 19:54:18,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:18,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019297651] [2022-02-23 19:54:18,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:18,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-02-23 19:54:18,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:18,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019297651] [2022-02-23 19:54:18,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019297651] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:18,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:18,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:18,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555324939] [2022-02-23 19:54:18,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:18,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:18,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:18,362 INFO L87 Difference]: Start difference. First operand 1224 states and 1742 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:18,535 INFO L93 Difference]: Finished difference Result 1336 states and 1878 transitions. [2022-02-23 19:54:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 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 212 [2022-02-23 19:54:18,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:18,540 INFO L225 Difference]: With dead ends: 1336 [2022-02-23 19:54:18,540 INFO L226 Difference]: Without dead ends: 1336 [2022-02-23 19:54:18,541 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 [2022-02-23 19:54:18,541 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:18,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 193 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2022-02-23 19:54:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1324. [2022-02-23 19:54:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1319 states have (on average 1.4086429112964367) internal successors, (1858), 1319 states have internal predecessors, (1858), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1862 transitions. [2022-02-23 19:54:18,563 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1862 transitions. Word has length 212 [2022-02-23 19:54:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:18,564 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1862 transitions. [2022-02-23 19:54:18,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1862 transitions. [2022-02-23 19:54:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-23 19:54:18,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:18,568 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:18,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:54:18,568 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:18,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2055655597, now seen corresponding path program 1 times [2022-02-23 19:54:18,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:18,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68217424] [2022-02-23 19:54:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:18,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-02-23 19:54:18,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:18,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68217424] [2022-02-23 19:54:18,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68217424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:18,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:18,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:18,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139854415] [2022-02-23 19:54:18,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:18,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:18,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:18,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:18,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:18,629 INFO L87 Difference]: Start difference. First operand 1324 states and 1862 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:18,796 INFO L93 Difference]: Finished difference Result 1444 states and 2002 transitions. [2022-02-23 19:54:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 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 236 [2022-02-23 19:54:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:18,800 INFO L225 Difference]: With dead ends: 1444 [2022-02-23 19:54:18,800 INFO L226 Difference]: Without dead ends: 1444 [2022-02-23 19:54:18,801 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 [2022-02-23 19:54:18,801 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:18,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-02-23 19:54:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2022-02-23 19:54:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1431 states have (on average 1.3906359189378057) internal successors, (1990), 1431 states have internal predecessors, (1990), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1994 transitions. [2022-02-23 19:54:18,828 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1994 transitions. Word has length 236 [2022-02-23 19:54:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:18,828 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1994 transitions. [2022-02-23 19:54:18,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1994 transitions. [2022-02-23 19:54:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-23 19:54:18,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:18,831 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:18,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 19:54:18,832 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash 909115084, now seen corresponding path program 1 times [2022-02-23 19:54:18,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:18,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192439103] [2022-02-23 19:54:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:18,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-02-23 19:54:18,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:18,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192439103] [2022-02-23 19:54:18,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192439103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:18,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:18,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:18,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77785176] [2022-02-23 19:54:18,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:18,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:18,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:18,890 INFO L87 Difference]: Start difference. First operand 1436 states and 1994 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:19,061 INFO L93 Difference]: Finished difference Result 1572 states and 2154 transitions. [2022-02-23 19:54:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:19,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 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 236 [2022-02-23 19:54:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:19,066 INFO L225 Difference]: With dead ends: 1572 [2022-02-23 19:54:19,066 INFO L226 Difference]: Without dead ends: 1572 [2022-02-23 19:54:19,067 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 [2022-02-23 19:54:19,068 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:19,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 194 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-02-23 19:54:19,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1560. [2022-02-23 19:54:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1555 states have (on average 1.372347266881029) internal successors, (2134), 1555 states have internal predecessors, (2134), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2138 transitions. [2022-02-23 19:54:19,096 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2138 transitions. Word has length 236 [2022-02-23 19:54:19,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:19,096 INFO L470 AbstractCegarLoop]: Abstraction has 1560 states and 2138 transitions. [2022-02-23 19:54:19,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2138 transitions. [2022-02-23 19:54:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-23 19:54:19,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:19,100 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 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] [2022-02-23 19:54:19,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:54:19,100 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:19,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1731324572, now seen corresponding path program 1 times [2022-02-23 19:54:19,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:19,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937734957] [2022-02-23 19:54:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-02-23 19:54:19,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:19,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937734957] [2022-02-23 19:54:19,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937734957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:19,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:19,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:19,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189113161] [2022-02-23 19:54:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:19,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:19,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:19,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:19,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:19,179 INFO L87 Difference]: Start difference. First operand 1560 states and 2138 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:19,357 INFO L93 Difference]: Finished difference Result 3103 states and 4251 transitions. [2022-02-23 19:54:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:19,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-02-23 19:54:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:19,366 INFO L225 Difference]: With dead ends: 3103 [2022-02-23 19:54:19,367 INFO L226 Difference]: Without dead ends: 3103 [2022-02-23 19:54:19,368 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 [2022-02-23 19:54:19,369 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 299 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:19,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 333 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2022-02-23 19:54:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3101. [2022-02-23 19:54:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 3096 states have (on average 1.3714470284237725) internal successors, (4246), 3096 states have internal predecessors, (4246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4250 transitions. [2022-02-23 19:54:19,424 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4250 transitions. Word has length 266 [2022-02-23 19:54:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:19,424 INFO L470 AbstractCegarLoop]: Abstraction has 3101 states and 4250 transitions. [2022-02-23 19:54:19,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4250 transitions. [2022-02-23 19:54:19,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-23 19:54:19,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:19,431 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 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] [2022-02-23 19:54:19,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 19:54:19,432 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:19,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:19,432 INFO L85 PathProgramCache]: Analyzing trace with hash 584784059, now seen corresponding path program 1 times [2022-02-23 19:54:19,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:19,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910117341] [2022-02-23 19:54:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-02-23 19:54:19,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:19,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910117341] [2022-02-23 19:54:19,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910117341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:19,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:19,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:19,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136550577] [2022-02-23 19:54:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:19,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:19,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:19,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:19,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:19,497 INFO L87 Difference]: Start difference. First operand 3101 states and 4250 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:19,681 INFO L93 Difference]: Finished difference Result 3401 states and 4590 transitions. [2022-02-23 19:54:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-02-23 19:54:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:19,691 INFO L225 Difference]: With dead ends: 3401 [2022-02-23 19:54:19,691 INFO L226 Difference]: Without dead ends: 3401 [2022-02-23 19:54:19,691 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 [2022-02-23 19:54:19,692 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:19,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 194 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:19,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2022-02-23 19:54:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3385. [2022-02-23 19:54:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3380 states have (on average 1.3520710059171597) internal successors, (4570), 3380 states have internal predecessors, (4570), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4574 transitions. [2022-02-23 19:54:19,742 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4574 transitions. Word has length 266 [2022-02-23 19:54:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:19,742 INFO L470 AbstractCegarLoop]: Abstraction has 3385 states and 4574 transitions. [2022-02-23 19:54:19,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4574 transitions. [2022-02-23 19:54:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-02-23 19:54:19,748 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:19,748 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:19,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 19:54:19,748 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:19,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:19,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1895653822, now seen corresponding path program 1 times [2022-02-23 19:54:19,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:19,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506939219] [2022-02-23 19:54:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:19,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-02-23 19:54:19,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:19,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506939219] [2022-02-23 19:54:19,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506939219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:19,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:19,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:19,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683485172] [2022-02-23 19:54:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:19,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:19,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:19,797 INFO L87 Difference]: Start difference. First operand 3385 states and 4574 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:20,004 INFO L93 Difference]: Finished difference Result 3533 states and 4742 transitions. [2022-02-23 19:54:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:20,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2022-02-23 19:54:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:20,014 INFO L225 Difference]: With dead ends: 3533 [2022-02-23 19:54:20,014 INFO L226 Difference]: Without dead ends: 3533 [2022-02-23 19:54:20,014 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 [2022-02-23 19:54:20,016 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:20,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2022-02-23 19:54:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3517. [2022-02-23 19:54:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 3512 states have (on average 1.3445330296127562) internal successors, (4722), 3512 states have internal predecessors, (4722), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4726 transitions. [2022-02-23 19:54:20,072 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4726 transitions. Word has length 290 [2022-02-23 19:54:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:20,072 INFO L470 AbstractCegarLoop]: Abstraction has 3517 states and 4726 transitions. [2022-02-23 19:54:20,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4726 transitions. [2022-02-23 19:54:20,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-23 19:54:20,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:20,079 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:20,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 19:54:20,079 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:20,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:20,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1898341703, now seen corresponding path program 1 times [2022-02-23 19:54:20,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:20,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069108269] [2022-02-23 19:54:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:20,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-02-23 19:54:20,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:20,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069108269] [2022-02-23 19:54:20,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069108269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:20,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:20,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:20,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720907357] [2022-02-23 19:54:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:20,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:20,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:20,134 INFO L87 Difference]: Start difference. First operand 3517 states and 4726 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:20,323 INFO L93 Difference]: Finished difference Result 3917 states and 5198 transitions. [2022-02-23 19:54:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-23 19:54:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:20,334 INFO L225 Difference]: With dead ends: 3917 [2022-02-23 19:54:20,334 INFO L226 Difference]: Without dead ends: 3917 [2022-02-23 19:54:20,334 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 [2022-02-23 19:54:20,335 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 230 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:20,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 194 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3917 states. [2022-02-23 19:54:20,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3829. [2022-02-23 19:54:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3824 states have (on average 1.3310669456066946) internal successors, (5090), 3824 states have internal predecessors, (5090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5094 transitions. [2022-02-23 19:54:20,390 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5094 transitions. Word has length 301 [2022-02-23 19:54:20,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:20,391 INFO L470 AbstractCegarLoop]: Abstraction has 3829 states and 5094 transitions. [2022-02-23 19:54:20,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5094 transitions. [2022-02-23 19:54:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-02-23 19:54:20,399 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:20,400 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:20,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 19:54:20,400 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1338697851, now seen corresponding path program 1 times [2022-02-23 19:54:20,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:20,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432836930] [2022-02-23 19:54:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:20,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-02-23 19:54:20,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:20,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432836930] [2022-02-23 19:54:20,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432836930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:20,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:20,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:20,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420909889] [2022-02-23 19:54:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:20,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:20,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:20,470 INFO L87 Difference]: Start difference. First operand 3829 states and 5094 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:20,625 INFO L93 Difference]: Finished difference Result 4237 states and 5542 transitions. [2022-02-23 19:54:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:20,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 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 315 [2022-02-23 19:54:20,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:20,638 INFO L225 Difference]: With dead ends: 4237 [2022-02-23 19:54:20,638 INFO L226 Difference]: Without dead ends: 4237 [2022-02-23 19:54:20,638 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 [2022-02-23 19:54:20,638 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 279 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:20,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 192 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:20,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2022-02-23 19:54:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 3949. [2022-02-23 19:54:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3944 states have (on average 1.327079107505071) internal successors, (5234), 3944 states have internal predecessors, (5234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 5238 transitions. [2022-02-23 19:54:20,704 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 5238 transitions. Word has length 315 [2022-02-23 19:54:20,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:20,705 INFO L470 AbstractCegarLoop]: Abstraction has 3949 states and 5238 transitions. [2022-02-23 19:54:20,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 5238 transitions. [2022-02-23 19:54:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-02-23 19:54:20,712 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:20,713 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-23 19:54:20,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 19:54:20,713 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1654457468, now seen corresponding path program 1 times [2022-02-23 19:54:20,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:20,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038590591] [2022-02-23 19:54:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-02-23 19:54:20,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:20,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038590591] [2022-02-23 19:54:20,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038590591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:20,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:20,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:20,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582457557] [2022-02-23 19:54:20,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:20,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:20,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:20,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:20,781 INFO L87 Difference]: Start difference. First operand 3949 states and 5238 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:20,941 INFO L93 Difference]: Finished difference Result 7381 states and 9843 transitions. [2022-02-23 19:54:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 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 316 [2022-02-23 19:54:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:20,955 INFO L225 Difference]: With dead ends: 7381 [2022-02-23 19:54:20,956 INFO L226 Difference]: Without dead ends: 7381 [2022-02-23 19:54:20,956 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 [2022-02-23 19:54:20,956 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 261 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:20,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 324 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-02-23 19:54:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 7379. [2022-02-23 19:54:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7374 states have (on average 1.3341470029834555) internal successors, (9838), 7374 states have internal predecessors, (9838), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 9842 transitions. [2022-02-23 19:54:21,089 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 9842 transitions. Word has length 316 [2022-02-23 19:54:21,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:21,090 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 9842 transitions. [2022-02-23 19:54:21,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:21,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 9842 transitions. [2022-02-23 19:54:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-02-23 19:54:21,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:21,102 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:21,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 19:54:21,102 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:21,103 INFO L85 PathProgramCache]: Analyzing trace with hash -387267926, now seen corresponding path program 1 times [2022-02-23 19:54:21,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:21,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287238153] [2022-02-23 19:54:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:21,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-02-23 19:54:21,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:21,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287238153] [2022-02-23 19:54:21,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287238153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:21,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:21,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:21,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758646345] [2022-02-23 19:54:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:21,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:21,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:21,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:21,164 INFO L87 Difference]: Start difference. First operand 7379 states and 9842 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:21,366 INFO L93 Difference]: Finished difference Result 7387 states and 9594 transitions. [2022-02-23 19:54:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:21,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 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 317 [2022-02-23 19:54:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:21,378 INFO L225 Difference]: With dead ends: 7387 [2022-02-23 19:54:21,378 INFO L226 Difference]: Without dead ends: 7387 [2022-02-23 19:54:21,378 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 [2022-02-23 19:54:21,380 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:21,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:54:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2022-02-23 19:54:21,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 7355. [2022-02-23 19:54:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7355 states, 7350 states have (on average 1.3004081632653062) internal successors, (9558), 7350 states have internal predecessors, (9558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 9562 transitions. [2022-02-23 19:54:21,466 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 9562 transitions. Word has length 317 [2022-02-23 19:54:21,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:21,466 INFO L470 AbstractCegarLoop]: Abstraction has 7355 states and 9562 transitions. [2022-02-23 19:54:21,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 9562 transitions. [2022-02-23 19:54:21,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-02-23 19:54:21,474 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:21,474 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:21,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 19:54:21,474 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:21,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1734711817, now seen corresponding path program 1 times [2022-02-23 19:54:21,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:21,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559932972] [2022-02-23 19:54:21,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:21,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 766 proven. 12 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-02-23 19:54:21,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:21,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559932972] [2022-02-23 19:54:21,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559932972] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:21,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629801013] [2022-02-23 19:54:21,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:21,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:21,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:21,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:21,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 19:54:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:21,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-23 19:54:21,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-02-23 19:54:22,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:22,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629801013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:22,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:22,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-02-23 19:54:22,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922182524] [2022-02-23 19:54:22,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:22,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:54:22,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:22,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:54:22,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-02-23 19:54:22,196 INFO L87 Difference]: Start difference. First operand 7355 states and 9562 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:22,328 INFO L93 Difference]: Finished difference Result 7533 states and 9774 transitions. [2022-02-23 19:54:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:54:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (3), 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 340 [2022-02-23 19:54:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:22,340 INFO L225 Difference]: With dead ends: 7533 [2022-02-23 19:54:22,340 INFO L226 Difference]: Without dead ends: 7505 [2022-02-23 19:54:22,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-02-23 19:54:22,341 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 249 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:22,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 384 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2022-02-23 19:54:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 7361. [2022-02-23 19:54:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7356 states have (on average 1.3004350190320826) internal successors, (9566), 7356 states have internal predecessors, (9566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 9570 transitions. [2022-02-23 19:54:22,433 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 9570 transitions. Word has length 340 [2022-02-23 19:54:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:22,434 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 9570 transitions. [2022-02-23 19:54:22,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 9570 transitions. [2022-02-23 19:54:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-02-23 19:54:22,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:22,441 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:22,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:22,656 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,SelfDestructingSolverStorable21 [2022-02-23 19:54:22,656 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:22,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:22,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1329745268, now seen corresponding path program 1 times [2022-02-23 19:54:22,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:22,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851239716] [2022-02-23 19:54:22,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:22,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-23 19:54:22,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:22,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851239716] [2022-02-23 19:54:22,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851239716] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:22,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85562770] [2022-02-23 19:54:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:22,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:22,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:22,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 19:54:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:22,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:22,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-23 19:54:23,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:54:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-23 19:54:23,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85562770] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:54:23,736 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:54:23,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:54:23,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839649321] [2022-02-23 19:54:23,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:54:23,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:54:23,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:23,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:54:23,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:54:23,737 INFO L87 Difference]: Start difference. First operand 7361 states and 9570 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) [2022-02-23 19:54:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:24,472 INFO L93 Difference]: Finished difference Result 11169 states and 14287 transitions. [2022-02-23 19:54:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 19:54:24,473 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 353 [2022-02-23 19:54:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:24,489 INFO L225 Difference]: With dead ends: 11169 [2022-02-23 19:54:24,489 INFO L226 Difference]: Without dead ends: 11161 [2022-02-23 19:54:24,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:54:24,490 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 403 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:24,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 409 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-23 19:54:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2022-02-23 19:54:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 8465. [2022-02-23 19:54:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8460 states have (on average 1.307565011820331) internal successors, (11062), 8460 states have internal predecessors, (11062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 11066 transitions. [2022-02-23 19:54:24,599 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 11066 transitions. Word has length 353 [2022-02-23 19:54:24,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:24,599 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 11066 transitions. [2022-02-23 19:54:24,600 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) [2022-02-23 19:54:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 11066 transitions. [2022-02-23 19:54:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-23 19:54:24,608 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:24,608 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:24,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:24,821 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,SelfDestructingSolverStorable22 [2022-02-23 19:54:24,822 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1292968849, now seen corresponding path program 2 times [2022-02-23 19:54:24,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:24,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871112234] [2022-02-23 19:54:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:24,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 843 proven. 5 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2022-02-23 19:54:24,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:24,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871112234] [2022-02-23 19:54:24,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871112234] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:24,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606775453] [2022-02-23 19:54:24,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-23 19:54:24,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:24,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:24,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:24,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 19:54:25,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-23 19:54:25,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-23 19:54:25,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:54:25,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-02-23 19:54:25,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:25,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606775453] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:25,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:25,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:54:25,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722101246] [2022-02-23 19:54:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:54:25,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:54:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:25,368 INFO L87 Difference]: Start difference. First operand 8465 states and 11066 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:25,469 INFO L93 Difference]: Finished difference Result 8745 states and 10826 transitions. [2022-02-23 19:54:25,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:54:25,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 366 [2022-02-23 19:54:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:25,482 INFO L225 Difference]: With dead ends: 8745 [2022-02-23 19:54:25,483 INFO L226 Difference]: Without dead ends: 8745 [2022-02-23 19:54:25,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:25,484 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 57 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:25,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 225 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8745 states. [2022-02-23 19:54:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8745 to 7889. [2022-02-23 19:54:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7889 states, 7884 states have (on average 1.2569761542364282) internal successors, (9910), 7884 states have internal predecessors, (9910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 9914 transitions. [2022-02-23 19:54:25,582 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 9914 transitions. Word has length 366 [2022-02-23 19:54:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:25,583 INFO L470 AbstractCegarLoop]: Abstraction has 7889 states and 9914 transitions. [2022-02-23 19:54:25,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 9914 transitions. [2022-02-23 19:54:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-02-23 19:54:25,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:25,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:25,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:25,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:25,803 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2096642603, now seen corresponding path program 1 times [2022-02-23 19:54:25,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:25,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171301468] [2022-02-23 19:54:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-02-23 19:54:25,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:25,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171301468] [2022-02-23 19:54:25,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171301468] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:25,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648633237] [2022-02-23 19:54:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:25,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:25,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:25,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 19:54:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:25,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:25,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-02-23 19:54:26,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:54:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-02-23 19:54:26,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648633237] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:54:26,898 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:54:26,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:54:26,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003859731] [2022-02-23 19:54:26,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:54:26,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:54:26,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:26,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:54:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:54:26,900 INFO L87 Difference]: Start difference. First operand 7889 states and 9914 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) [2022-02-23 19:54:27,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:27,255 INFO L93 Difference]: Finished difference Result 10039 states and 12420 transitions. [2022-02-23 19:54:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 19:54:27,255 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 [2022-02-23 19:54:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:27,270 INFO L225 Difference]: With dead ends: 10039 [2022-02-23 19:54:27,270 INFO L226 Difference]: Without dead ends: 10031 [2022-02-23 19:54:27,270 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 [2022-02-23 19:54:27,271 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 552 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:27,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 242 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-23 19:54:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-02-23 19:54:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 8280. [2022-02-23 19:54:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8280 states, 8275 states have (on average 1.253655589123867) internal successors, (10374), 8275 states have internal predecessors, (10374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8280 states to 8280 states and 10378 transitions. [2022-02-23 19:54:27,359 INFO L78 Accepts]: Start accepts. Automaton has 8280 states and 10378 transitions. Word has length 380 [2022-02-23 19:54:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:27,360 INFO L470 AbstractCegarLoop]: Abstraction has 8280 states and 10378 transitions. [2022-02-23 19:54:27,360 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) [2022-02-23 19:54:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 8280 states and 10378 transitions. [2022-02-23 19:54:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-02-23 19:54:27,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:27,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:54:27,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:27,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:27,583 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash -49962149, now seen corresponding path program 1 times [2022-02-23 19:54:27,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:27,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40550109] [2022-02-23 19:54:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-02-23 19:54:27,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:27,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40550109] [2022-02-23 19:54:27,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40550109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:27,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:54:27,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:54:27,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744604064] [2022-02-23 19:54:27,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:27,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:54:27,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:27,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:54:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:54:27,648 INFO L87 Difference]: Start difference. First operand 8280 states and 10378 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) [2022-02-23 19:54:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:27,843 INFO L93 Difference]: Finished difference Result 7596 states and 9074 transitions. [2022-02-23 19:54:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:54:27,844 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 [2022-02-23 19:54:27,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:27,849 INFO L225 Difference]: With dead ends: 7596 [2022-02-23 19:54:27,850 INFO L226 Difference]: Without dead ends: 3812 [2022-02-23 19:54:27,850 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 [2022-02-23 19:54:27,851 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:27,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 195 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-23 19:54:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2022-02-23 19:54:27,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3621. [2022-02-23 19:54:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.2419800884955752) internal successors, (4491), 3616 states have internal predecessors, (4491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4495 transitions. [2022-02-23 19:54:27,883 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4495 transitions. Word has length 419 [2022-02-23 19:54:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:27,884 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4495 transitions. [2022-02-23 19:54:27,884 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) [2022-02-23 19:54:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4495 transitions. [2022-02-23 19:54:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-02-23 19:54:27,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:27,889 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 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, 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] [2022-02-23 19:54:27,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 19:54:27,889 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:27,889 INFO L85 PathProgramCache]: Analyzing trace with hash -54549105, now seen corresponding path program 1 times [2022-02-23 19:54:27,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:27,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583483546] [2022-02-23 19:54:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:27,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-02-23 19:54:27,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:27,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583483546] [2022-02-23 19:54:27,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583483546] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:27,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437835897] [2022-02-23 19:54:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:27,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:54:27,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 19:54:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:28,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:28,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2022-02-23 19:54:28,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:54:28,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437835897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:54:28,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:54:28,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:54:28,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942577833] [2022-02-23 19:54:28,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:54:28,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:54:28,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:28,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:54:28,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:28,757 INFO L87 Difference]: Start difference. First operand 3621 states and 4495 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:28,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:28,782 INFO L93 Difference]: Finished difference Result 3960 states and 4882 transitions. [2022-02-23 19:54:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:54:28,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 503 [2022-02-23 19:54:28,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:28,788 INFO L225 Difference]: With dead ends: 3960 [2022-02-23 19:54:28,788 INFO L226 Difference]: Without dead ends: 3960 [2022-02-23 19:54:28,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:54:28,788 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 61 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:28,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 460 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:54:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-02-23 19:54:28,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3546. [2022-02-23 19:54:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.2420220276757978) internal successors, (4398), 3541 states have internal predecessors, (4398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 4402 transitions. [2022-02-23 19:54:28,819 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 4402 transitions. Word has length 503 [2022-02-23 19:54:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:28,820 INFO L470 AbstractCegarLoop]: Abstraction has 3546 states and 4402 transitions. [2022-02-23 19:54:28,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:54:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 4402 transitions. [2022-02-23 19:54:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-02-23 19:54:28,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:54:28,826 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-23 19:54:28,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:29,044 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,SelfDestructingSolverStorable26 [2022-02-23 19:54:29,045 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:54:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:54:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash 71565020, now seen corresponding path program 1 times [2022-02-23 19:54:29,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:54:29,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917950775] [2022-02-23 19:54:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:54:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:54:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-23 19:54:29,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:54:29,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917950775] [2022-02-23 19:54:29,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917950775] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:54:29,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789548021] [2022-02-23 19:54:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:54:29,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:54:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:54:29,167 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) [2022-02-23 19:54:29,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 19:54:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:54:29,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:54:29,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:54:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-23 19:54:30,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:54:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-23 19:54:30,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789548021] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:54:30,869 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:54:30,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-02-23 19:54:30,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753445429] [2022-02-23 19:54:30,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:54:30,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 19:54:30,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:54:30,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 19:54:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-23 19:54:30,872 INFO L87 Difference]: Start difference. First operand 3546 states and 4402 transitions. Second operand has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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) [2022-02-23 19:54:31,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:54:31,378 INFO L93 Difference]: Finished difference Result 967 states and 1137 transitions. [2022-02-23 19:54:31,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 19:54:31,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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 615 [2022-02-23 19:54:31,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:54:31,379 INFO L225 Difference]: With dead ends: 967 [2022-02-23 19:54:31,379 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 19:54:31,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:54:31,380 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 314 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:54:31,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 181 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-23 19:54:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 19:54:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 19:54:31,381 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) [2022-02-23 19:54:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 19:54:31,381 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 615 [2022-02-23 19:54:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:54:31,381 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 19:54:31,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.888888888888886) internal successors, (332), 8 states have internal predecessors, (332), 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) [2022-02-23 19:54:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 19:54:31,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 19:54:31,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 19:54:31,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-23 19:54:31,591 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,SelfDestructingSolverStorable27 [2022-02-23 19:54:31,594 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, 1] [2022-02-23 19:54:31,595 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 19:54:31,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:54:31 BasicIcfg [2022-02-23 19:54:31,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 19:54:31,598 INFO L158 Benchmark]: Toolchain (without parser) took 17445.54ms. Allocated memory was 168.8MB in the beginning and 427.8MB in the end (delta: 259.0MB). Free memory was 117.0MB in the beginning and 363.6MB in the end (delta: -246.5MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.69ms. Allocated memory was 168.8MB in the beginning and 203.4MB in the end (delta: 34.6MB). Free memory was 116.9MB in the beginning and 175.6MB in the end (delta: -58.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: Boogie Preprocessor took 62.23ms. Allocated memory is still 203.4MB. Free memory was 175.6MB in the beginning and 173.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: RCFGBuilder took 520.20ms. Allocated memory is still 203.4MB. Free memory was 173.3MB in the beginning and 147.7MB in the end (delta: 25.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: IcfgTransformer took 27.59ms. Allocated memory is still 203.4MB. Free memory was 147.3MB in the beginning and 144.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,598 INFO L158 Benchmark]: TraceAbstraction took 16555.31ms. Allocated memory was 203.4MB in the beginning and 427.8MB in the end (delta: 224.4MB). Free memory was 144.1MB in the beginning and 363.6MB in the end (delta: -219.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-23 19:54:31,599 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 168.8MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.69ms. Allocated memory was 168.8MB in the beginning and 203.4MB in the end (delta: 34.6MB). Free memory was 116.9MB in the beginning and 175.6MB in the end (delta: -58.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.23ms. Allocated memory is still 203.4MB. Free memory was 175.6MB in the beginning and 173.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 520.20ms. Allocated memory is still 203.4MB. Free memory was 173.3MB in the beginning and 147.7MB in the end (delta: 25.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * IcfgTransformer took 27.59ms. Allocated memory is still 203.4MB. Free memory was 147.3MB in the beginning and 144.6MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 16555.31ms. Allocated memory was 203.4MB in the beginning and 427.8MB in the end (delta: 224.4MB). Free memory was 144.1MB in the beginning and 363.6MB in the end (delta: -219.4MB). Peak memory consumption was 6.3MB. 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: 584]: 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, 137 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 28, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7022 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7020 mSDsluCounter, 6585 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 673 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7053 IncrementalHoareTripleChecker+Invalid, 7726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 673 mSolverCounterUnsat, 5897 mSDtfsCounter, 7053 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4110 GetRequests, 4001 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8465occurred in iteration=23, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 28 MinimizatonAttempts, 6652 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 9279 NumberOfCodeBlocks, 9279 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 10590 ConstructedInterpolants, 0 QuantifiedInterpolants, 14905 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4967 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 44927/45051 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! [2022-02-23 19:54:31,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...