/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:28:13,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:28:13,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:28:13,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:28:13,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:28:13,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:28:13,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:28:13,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:28:13,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:28:13,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:28:13,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:28:13,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:28:13,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:28:13,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:28:13,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:28:13,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:28:13,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:28:13,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:28:13,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:28:13,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:28:13,958 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:28:13,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:28:13,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:28:13,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:28:13,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:28:13,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 17:28:13,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:28:13,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:28:13,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:28:13,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 17:28:13,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:28:13,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:28:13,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:28:13,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:28:13,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:28:13,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:28:13,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:28:13,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:28:13,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:28:13,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:28:13,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:28:13,991 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:28:13,991 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:28:13,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:28:13,991 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:28:13,991 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:28:14,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:28:14,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:28:14,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:28:14,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:28:14,231 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:28:14,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-03-20 17:28:14,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a648667c/3b4ca1f0baee4f09ac3df48a98bf62ab/FLAG872c21985 [2022-03-20 17:28:14,769 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:28:14,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-03-20 17:28:14,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a648667c/3b4ca1f0baee4f09ac3df48a98bf62ab/FLAG872c21985 [2022-03-20 17:28:14,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a648667c/3b4ca1f0baee4f09ac3df48a98bf62ab [2022-03-20 17:28:14,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:28:14,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:28:14,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:28:14,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:28:14,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:28:14,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:28:14" (1/1) ... [2022-03-20 17:28:14,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bef932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:14, skipping insertion in model container [2022-03-20 17:28:14,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:28:14" (1/1) ... [2022-03-20 17:28:14,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:28:14,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:28:15,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2022-03-20 17:28:15,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:28:15,240 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:28:15,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2022-03-20 17:28:15,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:28:15,327 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:28:15,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15 WrapperNode [2022-03-20 17:28:15,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:28:15,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:28:15,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:28:15,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:28:15,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:28:15,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:28:15,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:28:15,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:28:15,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (1/1) ... [2022-03-20 17:28:15,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:28:15,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:28:15,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 17:28:15,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 17:28:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:28:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:28:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:28:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 17:28:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 17:28:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:28:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 17:28:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 17:28:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 17:28:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:28:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:28:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:28:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 17:28:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:28:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:28:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:28:15,696 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:28:15,697 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:28:16,731 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:28:17,084 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 17:28:17,084 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 17:28:17,101 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:28:17,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:28:17,108 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:28:17,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:28:17 BoogieIcfgContainer [2022-03-20 17:28:17,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:28:17,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:28:17,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:28:17,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:28:17,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:28:14" (1/3) ... [2022-03-20 17:28:17,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370931c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:28:17, skipping insertion in model container [2022-03-20 17:28:17,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:28:15" (2/3) ... [2022-03-20 17:28:17,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370931c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:28:17, skipping insertion in model container [2022-03-20 17:28:17,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:28:17" (3/3) ... [2022-03-20 17:28:17,117 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2022-03-20 17:28:17,121 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:28:17,121 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:28:17,162 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:28:17,166 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 17:28:17,166 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:28:17,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 17:28:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 17:28:17,186 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:17,187 INFO L499 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] [2022-03-20 17:28:17,187 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-03-20 17:28:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:17,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1066898959] [2022-03-20 17:28:17,203 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:28:17,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 2 times [2022-03-20 17:28:17,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:17,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64871483] [2022-03-20 17:28:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:17,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:28:17,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:17,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64871483] [2022-03-20 17:28:17,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64871483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:17,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:17,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:17,838 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:17,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1066898959] [2022-03-20 17:28:17,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1066898959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:17,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:17,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:17,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165586850] [2022-03-20 17:28:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:17,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:17,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:17,881 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-03-20 17:28:19,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:20,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:20,403 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2022-03-20 17:28:20,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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 [2022-03-20 17:28:20,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:20,414 INFO L225 Difference]: With dead ends: 271 [2022-03-20 17:28:20,414 INFO L226 Difference]: Without dead ends: 124 [2022-03-20 17:28:20,418 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:20,426 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:20,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:28:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-03-20 17:28:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-03-20 17:28:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-03-20 17:28:20,490 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-03-20 17:28:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:20,491 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-03-20 17:28:20,491 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-03-20 17:28:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-03-20 17:28:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 17:28:20,494 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:20,494 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:20,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:28:20,495 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1834539841, now seen corresponding path program 1 times [2022-03-20 17:28:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [845565345] [2022-03-20 17:28:20,498 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:20,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1834539841, now seen corresponding path program 2 times [2022-03-20 17:28:20,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:20,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553827519] [2022-03-20 17:28:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:20,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:20,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:20,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:20,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553827519] [2022-03-20 17:28:20,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553827519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:20,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:20,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:28:20,785 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [845565345] [2022-03-20 17:28:20,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [845565345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:20,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:20,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:28:20,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017964663] [2022-03-20 17:28:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:20,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:28:20,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:28:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:28:20,787 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:22,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:23,097 INFO L93 Difference]: Finished difference Result 333 states and 496 transitions. [2022-03-20 17:28:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:28:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 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 45 [2022-03-20 17:28:23,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:23,100 INFO L225 Difference]: With dead ends: 333 [2022-03-20 17:28:23,100 INFO L226 Difference]: Without dead ends: 226 [2022-03-20 17:28:23,101 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:28:23,102 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:23,103 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:28:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-20 17:28:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-03-20 17:28:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-03-20 17:28:23,122 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-03-20 17:28:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:23,122 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-03-20 17:28:23,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-03-20 17:28:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 17:28:23,124 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:23,125 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:23,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:28:23,125 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:23,126 INFO L85 PathProgramCache]: Analyzing trace with hash 943673003, now seen corresponding path program 1 times [2022-03-20 17:28:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:23,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [837309007] [2022-03-20 17:28:23,126 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 943673003, now seen corresponding path program 2 times [2022-03-20 17:28:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:23,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974490256] [2022-03-20 17:28:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:23,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:23,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:23,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974490256] [2022-03-20 17:28:23,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974490256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:23,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:23,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:23,315 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:23,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [837309007] [2022-03-20 17:28:23,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [837309007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:23,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:23,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895334280] [2022-03-20 17:28:23,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:23,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:23,317 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:25,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:25,773 INFO L93 Difference]: Finished difference Result 368 states and 543 transitions. [2022-03-20 17:28:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:25,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 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 60 [2022-03-20 17:28:25,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:25,776 INFO L225 Difference]: With dead ends: 368 [2022-03-20 17:28:25,776 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 17:28:25,777 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:25,777 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:25,778 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:28:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 17:28:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-20 17:28:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-03-20 17:28:25,794 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-03-20 17:28:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:25,794 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-03-20 17:28:25,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-03-20 17:28:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 17:28:25,796 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:25,797 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:28:25,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:28:25,797 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1523273022, now seen corresponding path program 3 times [2022-03-20 17:28:25,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [102007036] [2022-03-20 17:28:36,959 WARN L232 SmtUtils]: Spent 11.16s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:28:44,571 WARN L232 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:28:45,348 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:45,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1523273022, now seen corresponding path program 4 times [2022-03-20 17:28:45,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:45,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804246517] [2022-03-20 17:28:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:45,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:28:45,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:45,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804246517] [2022-03-20 17:28:45,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804246517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:45,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:45,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:45,575 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:45,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [102007036] [2022-03-20 17:28:45,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [102007036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:45,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:45,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:28:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101413621] [2022-03-20 17:28:45,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:45,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:28:45,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:28:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:28:45,581 INFO L87 Difference]: Start difference. First operand 244 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:47,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:28:48,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:48,102 INFO L93 Difference]: Finished difference Result 655 states and 976 transitions. [2022-03-20 17:28:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:28:48,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 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 75 [2022-03-20 17:28:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:48,106 INFO L225 Difference]: With dead ends: 655 [2022-03-20 17:28:48,106 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 17:28:48,109 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:28:48,110 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 113 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:48,111 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 302 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:28:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 17:28:48,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 266. [2022-03-20 17:28:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:48,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-03-20 17:28:48,147 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 75 [2022-03-20 17:28:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:48,147 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-03-20 17:28:48,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:28:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-03-20 17:28:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 17:28:48,153 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:48,153 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-20 17:28:48,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:28:48,154 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1541928480, now seen corresponding path program 1 times [2022-03-20 17:28:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:48,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1943241041] [2022-03-20 17:29:02,393 WARN L232 SmtUtils]: Spent 9.22s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:09,747 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:29:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1541928480, now seen corresponding path program 2 times [2022-03-20 17:29:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:29:09,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67277997] [2022-03-20 17:29:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:29:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:29:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:29:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:29:09,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:29:09,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67277997] [2022-03-20 17:29:09,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67277997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:09,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:09,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:09,947 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:29:09,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1943241041] [2022-03-20 17:29:09,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1943241041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:09,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:09,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:09,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113475033] [2022-03-20 17:29:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:29:09,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:29:09,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:09,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:29:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:29:09,949 INFO L87 Difference]: Start difference. First operand 266 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:11,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:29:12,421 INFO L93 Difference]: Finished difference Result 678 states and 1005 transitions. [2022-03-20 17:29:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:29:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 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 75 [2022-03-20 17:29:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:29:12,423 INFO L225 Difference]: With dead ends: 678 [2022-03-20 17:29:12,423 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 17:29:12,424 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:29:12,425 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:29:12,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:29:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 17:29:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 268. [2022-03-20 17:29:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4752851711026616) internal successors, (388), 263 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:12,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 392 transitions. [2022-03-20 17:29:12,440 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 392 transitions. Word has length 75 [2022-03-20 17:29:12,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:29:12,441 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 392 transitions. [2022-03-20 17:29:12,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:12,441 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 392 transitions. [2022-03-20 17:29:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-20 17:29:12,442 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:29:12,442 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-03-20 17:29:12,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:29:12,443 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:29:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:29:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1572013375, now seen corresponding path program 1 times [2022-03-20 17:29:12,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:12,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1972026281] [2022-03-20 17:29:29,531 WARN L232 SmtUtils]: Spent 12.37s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:36,844 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:29:36,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1572013375, now seen corresponding path program 2 times [2022-03-20 17:29:36,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:29:36,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697717100] [2022-03-20 17:29:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:29:36,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:29:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:29:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:29:37,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:29:37,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697717100] [2022-03-20 17:29:37,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697717100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:37,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:37,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:37,024 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:29:37,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1972026281] [2022-03-20 17:29:37,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1972026281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:37,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:37,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:37,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106242877] [2022-03-20 17:29:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:29:37,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:29:37,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:37,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:29:37,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:29:37,026 INFO L87 Difference]: Start difference. First operand 268 states and 392 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:39,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:29:39,460 INFO L93 Difference]: Finished difference Result 421 states and 618 transitions. [2022-03-20 17:29:39,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:29:39,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 76 [2022-03-20 17:29:39,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:29:39,462 INFO L225 Difference]: With dead ends: 421 [2022-03-20 17:29:39,462 INFO L226 Difference]: Without dead ends: 284 [2022-03-20 17:29:39,463 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:29:39,463 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:29:39,464 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:29:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-20 17:29:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 268. [2022-03-20 17:29:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4714828897338403) internal successors, (387), 263 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 391 transitions. [2022-03-20 17:29:39,477 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 391 transitions. Word has length 76 [2022-03-20 17:29:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:29:39,477 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 391 transitions. [2022-03-20 17:29:39,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:29:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 391 transitions. [2022-03-20 17:29:39,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 17:29:39,478 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:29:39,478 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:29:39,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:29:39,479 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:29:39,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:29:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1073962757, now seen corresponding path program 1 times [2022-03-20 17:29:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:39,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [547538617] [2022-03-20 17:29:53,067 WARN L232 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:29:58,158 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:29:58,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1073962757, now seen corresponding path program 2 times [2022-03-20 17:29:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:29:58,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000179521] [2022-03-20 17:29:58,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:29:58,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:29:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:58,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:29:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:29:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:29:58,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:29:58,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000179521] [2022-03-20 17:29:58,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000179521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:58,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:58,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:58,313 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:29:58,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [547538617] [2022-03-20 17:29:58,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [547538617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:29:58,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:29:58,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:29:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838856726] [2022-03-20 17:29:58,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:29:58,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:29:58,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:29:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:29:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:29:58,315 INFO L87 Difference]: Start difference. First operand 268 states and 391 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:00,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:00,753 INFO L93 Difference]: Finished difference Result 421 states and 616 transitions. [2022-03-20 17:30:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 17:30:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:00,755 INFO L225 Difference]: With dead ends: 421 [2022-03-20 17:30:00,755 INFO L226 Difference]: Without dead ends: 284 [2022-03-20 17:30:00,755 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:00,756 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 31 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:00,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-03-20 17:30:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 268. [2022-03-20 17:30:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.467680608365019) internal successors, (386), 263 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-03-20 17:30:00,769 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 77 [2022-03-20 17:30:00,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:00,769 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-03-20 17:30:00,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-03-20 17:30:00,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:00,771 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:00,771 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:00,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:30:00,771 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:00,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash 273295172, now seen corresponding path program 1 times [2022-03-20 17:30:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:00,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1744731637] [2022-03-20 17:30:17,411 WARN L232 SmtUtils]: Spent 10.76s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:30:24,910 WARN L232 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:30:25,610 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 273295172, now seen corresponding path program 2 times [2022-03-20 17:30:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553212389] [2022-03-20 17:30:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:25,769 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:30:25,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:25,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553212389] [2022-03-20 17:30:25,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553212389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:25,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:25,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:25,770 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:25,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1744731637] [2022-03-20 17:30:25,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1744731637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:25,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:25,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:25,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918916107] [2022-03-20 17:30:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:25,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:25,772 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:27,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:28,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:28,143 INFO L93 Difference]: Finished difference Result 412 states and 603 transitions. [2022-03-20 17:30:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:28,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 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 [2022-03-20 17:30:28,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:28,145 INFO L225 Difference]: With dead ends: 412 [2022-03-20 17:30:28,145 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 17:30:28,146 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:28,146 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:28,146 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 17:30:28,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 268. [2022-03-20 17:30:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4638783269961977) internal successors, (385), 263 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 389 transitions. [2022-03-20 17:30:28,159 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 389 transitions. Word has length 78 [2022-03-20 17:30:28,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:28,159 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 389 transitions. [2022-03-20 17:30:28,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 389 transitions. [2022-03-20 17:30:28,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:28,160 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:28,160 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:28,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:30:28,160 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:28,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:28,161 INFO L85 PathProgramCache]: Analyzing trace with hash 369392995, now seen corresponding path program 1 times [2022-03-20 17:30:28,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:28,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [317750429] [2022-03-20 17:30:28,161 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:28,162 INFO L85 PathProgramCache]: Analyzing trace with hash 369392995, now seen corresponding path program 2 times [2022-03-20 17:30:28,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:28,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474043784] [2022-03-20 17:30:28,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:28,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 17:30:28,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:28,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474043784] [2022-03-20 17:30:28,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474043784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:28,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:28,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:28,325 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:28,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [317750429] [2022-03-20 17:30:28,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [317750429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:28,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:28,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:28,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532155514] [2022-03-20 17:30:28,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:28,326 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:28,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:28,328 INFO L87 Difference]: Start difference. First operand 268 states and 389 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:30,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:30,777 INFO L93 Difference]: Finished difference Result 539 states and 791 transitions. [2022-03-20 17:30:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 17:30:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:30,780 INFO L225 Difference]: With dead ends: 539 [2022-03-20 17:30:30,780 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 17:30:30,781 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:30,781 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:30,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 17:30:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2022-03-20 17:30:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 397 states have (on average 1.4584382871536523) internal successors, (579), 397 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:30,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 583 transitions. [2022-03-20 17:30:30,797 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 583 transitions. Word has length 78 [2022-03-20 17:30:30,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:30,797 INFO L478 AbstractCegarLoop]: Abstraction has 402 states and 583 transitions. [2022-03-20 17:30:30,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:30,797 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 583 transitions. [2022-03-20 17:30:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:30:30,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:30,798 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:30,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 17:30:30,799 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash 431432609, now seen corresponding path program 1 times [2022-03-20 17:30:30,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:30,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1173340602] [2022-03-20 17:30:30,800 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:30,800 INFO L85 PathProgramCache]: Analyzing trace with hash 431432609, now seen corresponding path program 2 times [2022-03-20 17:30:30,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:30,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349846174] [2022-03-20 17:30:30,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:30,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 17:30:30,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:30,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349846174] [2022-03-20 17:30:30,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349846174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:30,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:30,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:30,934 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:30,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1173340602] [2022-03-20 17:30:30,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1173340602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:30,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:30,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:30,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263849002] [2022-03-20 17:30:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:30,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:30,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:30,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:30,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:30,936 INFO L87 Difference]: Start difference. First operand 402 states and 583 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:32,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:33,221 INFO L93 Difference]: Finished difference Result 697 states and 1013 transitions. [2022-03-20 17:30:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:33,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 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 [2022-03-20 17:30:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:33,224 INFO L225 Difference]: With dead ends: 697 [2022-03-20 17:30:33,224 INFO L226 Difference]: Without dead ends: 426 [2022-03-20 17:30:33,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:33,225 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:33,225 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-20 17:30:33,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-03-20 17:30:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 421 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 615 transitions. [2022-03-20 17:30:33,242 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 615 transitions. Word has length 78 [2022-03-20 17:30:33,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:33,242 INFO L478 AbstractCegarLoop]: Abstraction has 426 states and 615 transitions. [2022-03-20 17:30:33,242 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 615 transitions. [2022-03-20 17:30:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:30:33,244 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:33,244 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:33,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 17:30:33,244 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:33,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1609163299, now seen corresponding path program 1 times [2022-03-20 17:30:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:33,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [350039850] [2022-03-20 17:30:33,245 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:33,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1609163299, now seen corresponding path program 2 times [2022-03-20 17:30:33,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:33,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082059162] [2022-03-20 17:30:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:33,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 17:30:33,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:33,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082059162] [2022-03-20 17:30:33,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082059162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:33,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:33,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:33,421 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:33,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [350039850] [2022-03-20 17:30:33,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [350039850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:33,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:33,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:33,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439031921] [2022-03-20 17:30:33,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:33,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:33,422 INFO L87 Difference]: Start difference. First operand 426 states and 615 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:35,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:35,864 INFO L93 Difference]: Finished difference Result 854 states and 1242 transitions. [2022-03-20 17:30:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:35,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-20 17:30:35,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:35,867 INFO L225 Difference]: With dead ends: 854 [2022-03-20 17:30:35,867 INFO L226 Difference]: Without dead ends: 559 [2022-03-20 17:30:35,868 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:35,868 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:35,869 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-20 17:30:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-03-20 17:30:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 554 states have (on average 1.4512635379061372) internal successors, (804), 554 states have internal predecessors, (804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 808 transitions. [2022-03-20 17:30:35,889 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 808 transitions. Word has length 98 [2022-03-20 17:30:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:35,889 INFO L478 AbstractCegarLoop]: Abstraction has 559 states and 808 transitions. [2022-03-20 17:30:35,890 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 808 transitions. [2022-03-20 17:30:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 17:30:35,891 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:35,891 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:35,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 17:30:35,892 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:35,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-03-20 17:30:35,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:35,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [324993778] [2022-03-20 17:30:35,893 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 2 times [2022-03-20 17:30:35,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:35,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917316391] [2022-03-20 17:30:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:35,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:30:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:36,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917316391] [2022-03-20 17:30:36,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917316391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:36,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:36,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:36,049 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:36,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [324993778] [2022-03-20 17:30:36,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [324993778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:36,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:36,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:30:36,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137037045] [2022-03-20 17:30:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:36,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:30:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:30:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:36,050 INFO L87 Difference]: Start difference. First operand 559 states and 808 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:38,449 INFO L93 Difference]: Finished difference Result 984 states and 1425 transitions. [2022-03-20 17:30:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:30:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 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 119 [2022-03-20 17:30:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:38,452 INFO L225 Difference]: With dead ends: 984 [2022-03-20 17:30:38,452 INFO L226 Difference]: Without dead ends: 556 [2022-03-20 17:30:38,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:30:38,454 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 128 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:38,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 478 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-03-20 17:30:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2022-03-20 17:30:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.441016333938294) internal successors, (794), 551 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 798 transitions. [2022-03-20 17:30:38,475 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 798 transitions. Word has length 119 [2022-03-20 17:30:38,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:38,476 INFO L478 AbstractCegarLoop]: Abstraction has 556 states and 798 transitions. [2022-03-20 17:30:38,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 798 transitions. [2022-03-20 17:30:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 17:30:38,477 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:38,478 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:38,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 17:30:38,478 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:38,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 729336437, now seen corresponding path program 1 times [2022-03-20 17:30:38,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:38,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [910860316] [2022-03-20 17:30:38,480 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:38,480 INFO L85 PathProgramCache]: Analyzing trace with hash 729336437, now seen corresponding path program 2 times [2022-03-20 17:30:38,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:38,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511055034] [2022-03-20 17:30:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:38,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 17:30:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:38,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511055034] [2022-03-20 17:30:38,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511055034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:38,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:38,672 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:38,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [910860316] [2022-03-20 17:30:38,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [910860316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:38,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:38,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267844193] [2022-03-20 17:30:38,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:38,673 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:38,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:38,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:38,673 INFO L87 Difference]: Start difference. First operand 556 states and 798 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:40,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:41,088 INFO L93 Difference]: Finished difference Result 1463 states and 2109 transitions. [2022-03-20 17:30:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:41,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-20 17:30:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:41,092 INFO L225 Difference]: With dead ends: 1463 [2022-03-20 17:30:41,092 INFO L226 Difference]: Without dead ends: 923 [2022-03-20 17:30:41,093 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:41,094 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 111 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:41,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:30:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-03-20 17:30:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 640. [2022-03-20 17:30:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 635 states have (on average 1.458267716535433) internal successors, (926), 635 states have internal predecessors, (926), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 930 transitions. [2022-03-20 17:30:41,124 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 930 transitions. Word has length 121 [2022-03-20 17:30:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:41,125 INFO L478 AbstractCegarLoop]: Abstraction has 640 states and 930 transitions. [2022-03-20 17:30:41,125 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 930 transitions. [2022-03-20 17:30:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 17:30:41,127 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:41,127 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:41,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 17:30:41,127 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:41,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:41,127 INFO L85 PathProgramCache]: Analyzing trace with hash -486817289, now seen corresponding path program 1 times [2022-03-20 17:30:41,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1229747679] [2022-03-20 17:30:41,128 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash -486817289, now seen corresponding path program 2 times [2022-03-20 17:30:41,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:41,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386862300] [2022-03-20 17:30:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:41,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:30:41,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:41,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386862300] [2022-03-20 17:30:41,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386862300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:41,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:41,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:41,295 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:41,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1229747679] [2022-03-20 17:30:41,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1229747679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:41,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:41,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:41,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280794015] [2022-03-20 17:30:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:41,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:41,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:41,297 INFO L87 Difference]: Start difference. First operand 640 states and 930 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:43,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:43,683 INFO L93 Difference]: Finished difference Result 1659 states and 2429 transitions. [2022-03-20 17:30:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-20 17:30:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:43,687 INFO L225 Difference]: With dead ends: 1659 [2022-03-20 17:30:43,687 INFO L226 Difference]: Without dead ends: 1035 [2022-03-20 17:30:43,689 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:43,689 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 104 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:43,690 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:43,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-03-20 17:30:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 776. [2022-03-20 17:30:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 771 states have (on average 1.5071335927367056) internal successors, (1162), 771 states have internal predecessors, (1162), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1166 transitions. [2022-03-20 17:30:43,731 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1166 transitions. Word has length 121 [2022-03-20 17:30:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:43,732 INFO L478 AbstractCegarLoop]: Abstraction has 776 states and 1166 transitions. [2022-03-20 17:30:43,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1166 transitions. [2022-03-20 17:30:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 17:30:43,734 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:43,734 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:43,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 17:30:43,734 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2084056150, now seen corresponding path program 1 times [2022-03-20 17:30:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:43,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1245127158] [2022-03-20 17:30:43,735 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:43,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2084056150, now seen corresponding path program 2 times [2022-03-20 17:30:43,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:43,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236289421] [2022-03-20 17:30:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:43,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:30:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:30:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:30:43,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:30:43,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236289421] [2022-03-20 17:30:43,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236289421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:43,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:43,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:43,939 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:30:43,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1245127158] [2022-03-20 17:30:43,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1245127158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:30:43,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:30:43,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:30:43,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479325115] [2022-03-20 17:30:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:30:43,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:30:43,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:30:43,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:30:43,941 INFO L87 Difference]: Start difference. First operand 776 states and 1166 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:45,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:46,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:30:46,323 INFO L93 Difference]: Finished difference Result 1819 states and 2709 transitions. [2022-03-20 17:30:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:30:46,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 17:30:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:30:46,327 INFO L225 Difference]: With dead ends: 1819 [2022-03-20 17:30:46,327 INFO L226 Difference]: Without dead ends: 1059 [2022-03-20 17:30:46,328 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:30:46,329 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 103 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:30:46,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 280 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:30:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-03-20 17:30:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 804. [2022-03-20 17:30:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 799 states have (on average 1.5193992490613266) internal successors, (1214), 799 states have internal predecessors, (1214), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1218 transitions. [2022-03-20 17:30:46,377 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1218 transitions. Word has length 122 [2022-03-20 17:30:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:30:46,377 INFO L478 AbstractCegarLoop]: Abstraction has 804 states and 1218 transitions. [2022-03-20 17:30:46,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:30:46,377 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1218 transitions. [2022-03-20 17:30:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 17:30:46,379 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:30:46,379 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:30:46,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 17:30:46,380 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:30:46,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:30:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-03-20 17:30:46,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:30:46,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1224545603] [2022-03-20 17:30:46,381 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:30:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 2 times [2022-03-20 17:30:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:30:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468602611] [2022-03-20 17:30:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:30:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:30:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:30:47,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 17:30:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:30:47,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 17:30:47,740 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-20 17:30:47,740 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 17:30:47,745 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 17:30:47,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 17:30:47,748 INFO L719 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-20 17:30:47,751 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 17:30:47,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 05:30:47 BoogieIcfgContainer [2022-03-20 17:30:47,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 17:30:47,799 INFO L158 Benchmark]: Toolchain (without parser) took 152993.13ms. Allocated memory was 207.6MB in the beginning and 439.4MB in the end (delta: 231.7MB). Free memory was 152.9MB in the beginning and 170.1MB in the end (delta: -17.2MB). Peak memory consumption was 214.4MB. Max. memory is 8.0GB. [2022-03-20 17:30:47,799 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 17:30:47,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.86ms. Allocated memory was 207.6MB in the beginning and 366.0MB in the end (delta: 158.3MB). Free memory was 152.7MB in the beginning and 321.0MB in the end (delta: -168.3MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-03-20 17:30:47,800 INFO L158 Benchmark]: Boogie Preprocessor took 89.33ms. Allocated memory is still 366.0MB. Free memory was 321.0MB in the beginning and 313.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 17:30:47,800 INFO L158 Benchmark]: RCFGBuilder took 1691.61ms. Allocated memory is still 366.0MB. Free memory was 313.7MB in the beginning and 276.8MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-03-20 17:30:47,800 INFO L158 Benchmark]: TraceAbstraction took 150682.93ms. Allocated memory was 366.0MB in the beginning and 439.4MB in the end (delta: 73.4MB). Free memory was 276.2MB in the beginning and 170.1MB in the end (delta: 106.1MB). Peak memory consumption was 179.5MB. Max. memory is 8.0GB. [2022-03-20 17:30:47,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 524.86ms. Allocated memory was 207.6MB in the beginning and 366.0MB in the end (delta: 158.3MB). Free memory was 152.7MB in the beginning and 321.0MB in the end (delta: -168.3MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.33ms. Allocated memory is still 366.0MB. Free memory was 321.0MB in the beginning and 313.7MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1691.61ms. Allocated memory is still 366.0MB. Free memory was 313.7MB in the beginning and 276.8MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 150682.93ms. Allocated memory was 366.0MB in the beginning and 439.4MB in the end (delta: 73.4MB). Free memory was 276.2MB in the beginning and 170.1MB in the end (delta: 106.1MB). Peak memory consumption was 179.5MB. 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 - UnprovableResult [Line: 1668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1353. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1098] CALL ssl3_connect(s) [L1104] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 ; [L1116] int tmp___4 ; [L1117] int tmp___5 ; [L1118] int tmp___6 ; [L1119] int tmp___7 ; [L1120] int tmp___8 ; [L1121] long tmp___9 ; [L1123] int blastFlag ; [L1126] blastFlag = 0 [L1127] s->hit=__VERIFIER_nondet_int () [L1128] s->state = 12292 [L1129] tmp = __VERIFIER_nondet_int() [L1130] cb = (void (*)())((void *)0) [L1131] ret = -1 [L1132] skip = 0 [L1133] EXPR s->info_callback [L1133] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1134] EXPR s->info_callback [L1134] cb = s->info_callback [L1142] EXPR s->in_handshake [L1142] s->in_handshake += 1 [L1143] COND FALSE !(tmp___1 & 12288) [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND TRUE s->state == 12292 [L1259] s->new_session = 1 [L1260] s->state = 4096 [L1261] EXPR s->ctx [L1261] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1261] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1266] s->server = 0 [L1267] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1272] EXPR s->version [L1272] COND FALSE !((s->version & 65280) != 768) [L1278] s->type = 4096 [L1279] EXPR s->init_buf [L1279] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1291] tmp___4 = __VERIFIER_nondet_int() [L1292] COND FALSE !(! tmp___4) [L1298] tmp___5 = __VERIFIER_nondet_int() [L1299] COND FALSE !(! tmp___5) [L1305] s->state = 4368 [L1306] EXPR s->ctx [L1306] EXPR (s->ctx)->stats.sess_connect [L1306] (s->ctx)->stats.sess_connect += 1 [L1307] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4368 [L1311] s->shutdown = 0 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 0 [L1314] blastFlag = 1 [L1318] COND FALSE !(ret <= 0) [L1323] s->state = 4384 [L1324] s->init_num = 0 [L1325] EXPR s->bbio [L1325] EXPR s->wbio [L1325] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4384 [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 1 [L1335] blastFlag = 2 [L1339] COND FALSE !(ret <= 0) [L1344] s->hit [L1344] COND FALSE !(s->hit) [L1347] s->state = 4400 [L1349] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND TRUE s->state == 4400 [L1353] EXPR s->s3 [L1353] EXPR (s->s3)->tmp.new_cipher [L1353] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1353] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 2 [L1358] blastFlag = 3 [L1362] COND FALSE !(ret <= 0) [L1368] s->state = 4416 [L1369] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND TRUE s->state == 4416 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND TRUE blastFlag == 3 [L1375] blastFlag = 4 [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4432 [L1385] s->init_num = 0 [L1386] tmp___6 = __VERIFIER_nondet_int() [L1387] COND FALSE !(! tmp___6) [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state [L1195] COND TRUE s->state == 4432 [L1396] ret = __VERIFIER_nondet_int() [L1397] COND FALSE !(blastFlag == 5) [L1402] COND FALSE !(ret <= 0) [L1407] s->state = 4448 [L1408] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 4432) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 4433) [L1201] EXPR s->state [L1201] COND TRUE s->state == 4448 [L1412] ret = __VERIFIER_nondet_int() [L1413] COND TRUE blastFlag == 4 [L1668] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 150.6s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 36.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 1199 SdHoareTripleChecker+Valid, 35.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1199 mSDsluCounter, 6045 SdHoareTripleChecker+Invalid, 34.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3227 mSDsCounter, 285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5060 IncrementalHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 285 mSolverCounterUnsat, 2818 mSDtfsCounter, 5060 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=804occurred in iteration=15, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 1175 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-20 17:30:47,820 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...