/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:22:41,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:22:41,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:22:41,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:22:41,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:22:41,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:22:41,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:22:41,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:22:41,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:22:41,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:22:41,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:22:41,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:22:41,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:22:41,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:22:41,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:22:41,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:22:41,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:22:41,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:22:41,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:22:41,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:22:41,583 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:22:41,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:22:41,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:22:41,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:22:41,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:22:41,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 23:22:41,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:22:41,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:22:41,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:22:41,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:22:41,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:22:41,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:22:41,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:22:41,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:22:41,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:22:41,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:22:41,624 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:22:41,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:22:41,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:22:41,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:22:41,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:22:41,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:22:41,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:22:41,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:22:41,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:22:41,630 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:22:41,630 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:22:41,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:22:41,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:22:41,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:22:41,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:22:41,805 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:22:41,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-03-17 23:22:41,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c59e9f/86bce8b0ea8249549c2d8017a507e383/FLAG3d06849fb [2022-03-17 23:22:42,289 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:22:42,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-03-17 23:22:42,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c59e9f/86bce8b0ea8249549c2d8017a507e383/FLAG3d06849fb [2022-03-17 23:22:42,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd5c59e9f/86bce8b0ea8249549c2d8017a507e383 [2022-03-17 23:22:42,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:22:42,607 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:22:42,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:22:42,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:22:42,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:22:42,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:22:42" (1/1) ... [2022-03-17 23:22:42,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a84a907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:42, skipping insertion in model container [2022-03-17 23:22:42,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:22:42" (1/1) ... [2022-03-17 23:22:42,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:22:42,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:22:42,967 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.02.i.cil-2.c[65398,65411] [2022-03-17 23:22:42,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:22:43,003 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:22:43,110 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.02.i.cil-2.c[65398,65411] [2022-03-17 23:22:43,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:22:43,127 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:22:43,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43 WrapperNode [2022-03-17 23:22:43,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:22:43,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:22:43,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:22:43,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:22:43,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:22:43,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:22:43,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:22:43,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:22:43,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (1/1) ... [2022-03-17 23:22:43,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:22:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:22:43,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 23:22:43,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 23:22:43,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:22:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-17 23:22:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:22:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:22:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-17 23:22:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:22:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:22:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:22:43,462 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:22:43,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:22:45,081 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:22:45,420 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-17 23:22:45,421 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-17 23:22:45,430 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:22:45,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:22:45,436 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:22:45,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:22:45 BoogieIcfgContainer [2022-03-17 23:22:45,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:22:45,438 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:22:45,438 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:22:45,439 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:22:45,441 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:22:45" (1/1) ... [2022-03-17 23:22:45,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:22:45 BasicIcfg [2022-03-17 23:22:45,471 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:22:45,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:22:45,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:22:45,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:22:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:22:42" (1/4) ... [2022-03-17 23:22:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:22:45, skipping insertion in model container [2022-03-17 23:22:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:22:43" (2/4) ... [2022-03-17 23:22:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:22:45, skipping insertion in model container [2022-03-17 23:22:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:22:45" (3/4) ... [2022-03-17 23:22:45,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e559d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:22:45, skipping insertion in model container [2022-03-17 23:22:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:22:45" (4/4) ... [2022-03-17 23:22:45,477 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cqvasr [2022-03-17 23:22:45,480 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:22:45,481 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:22:45,512 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:22:45,516 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:22:45,516 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:22:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:22:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-17 23:22:45,534 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:45,535 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:22:45,535 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-03-17 23:22:45,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:45,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304404578] [2022-03-17 23:22:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:22:46,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:46,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304404578] [2022-03-17 23:22:46,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304404578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:46,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:46,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:22:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459326357] [2022-03-17 23:22:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:46,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:22:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:46,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:22:46,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:22:46,125 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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) [2022-03-17 23:22:48,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:22:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:22:48,594 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-03-17 23:22:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:22:48,597 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 [2022-03-17 23:22:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:22:48,603 INFO L225 Difference]: With dead ends: 267 [2022-03-17 23:22:48,603 INFO L226 Difference]: Without dead ends: 122 [2022-03-17 23:22:48,605 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:22:48,608 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:22:48,608 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:22:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-17 23:22:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-17 23:22:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-17 23:22:48,637 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-17 23:22:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:22:48,637 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-17 23:22:48,637 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) [2022-03-17 23:22:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-17 23:22:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-17 23:22:48,638 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:48,638 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:22:48,638 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:22:48,639 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-03-17 23:22:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:48,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723094582] [2022-03-17 23:22:48,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:22:48,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:48,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723094582] [2022-03-17 23:22:48,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723094582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:48,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:48,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:22:48,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706475678] [2022-03-17 23:22:48,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:48,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:22:48,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:48,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:22:48,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:22:48,827 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:50,836 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 [] [2022-03-17 23:22:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:22:51,127 INFO L93 Difference]: Finished difference Result 326 states and 488 transitions. [2022-03-17 23:22:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:22:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-17 23:22:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:22:51,130 INFO L225 Difference]: With dead ends: 326 [2022-03-17 23:22:51,130 INFO L226 Difference]: Without dead ends: 221 [2022-03-17 23:22:51,131 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:22:51,132 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:22:51,132 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:22:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-17 23:22:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-03-17 23:22:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-03-17 23:22:51,154 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-03-17 23:22:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:22:51,154 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-03-17 23:22:51,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-03-17 23:22:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 23:22:51,161 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:51,162 INFO L500 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] [2022-03-17 23:22:51,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:22:51,162 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-03-17 23:22:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:51,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604743284] [2022-03-17 23:22:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:22:51,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:51,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604743284] [2022-03-17 23:22:51,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604743284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:51,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:51,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:22:51,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423827212] [2022-03-17 23:22:51,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:51,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:22:51,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:51,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:22:51,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:22:51,323 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:53,332 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 [] [2022-03-17 23:22:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:22:53,726 INFO L93 Difference]: Finished difference Result 362 states and 538 transitions. [2022-03-17 23:22:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:22:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 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 59 [2022-03-17 23:22:53,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:22:53,734 INFO L225 Difference]: With dead ends: 362 [2022-03-17 23:22:53,734 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 23:22:53,734 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:22:53,735 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:22:53,736 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:22:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 23:22:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-03-17 23:22:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5) internal successors, (351), 234 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-03-17 23:22:53,747 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-03-17 23:22:53,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:22:53,748 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-03-17 23:22:53,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-03-17 23:22:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 23:22:53,749 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:53,749 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:22:53,749 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:22:53,749 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1707240826, now seen corresponding path program 2 times [2022-03-17 23:22:53,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:53,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492660615] [2022-03-17 23:22:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:22:53,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:53,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492660615] [2022-03-17 23:22:53,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492660615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:53,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:53,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:22:53,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616211772] [2022-03-17 23:22:53,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:53,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:22:53,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:53,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:22:53,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:22:53,926 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:55,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:22:56,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:22:56,347 INFO L93 Difference]: Finished difference Result 642 states and 963 transitions. [2022-03-17 23:22:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:22:56,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-17 23:22:56,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:22:56,350 INFO L225 Difference]: With dead ends: 642 [2022-03-17 23:22:56,350 INFO L226 Difference]: Without dead ends: 419 [2022-03-17 23:22:56,351 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:22:56,352 INFO L912 BasicCegarLoop]: 104 mSDtfsCounter, 112 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:22:56,352 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:22:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-03-17 23:22:56,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 261. [2022-03-17 23:22:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.4921875) internal successors, (382), 256 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-03-17 23:22:56,378 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 73 [2022-03-17 23:22:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:22:56,378 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-03-17 23:22:56,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-03-17 23:22:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 23:22:56,379 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:56,379 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-17 23:22:56,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:22:56,379 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:56,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2069356890, now seen corresponding path program 1 times [2022-03-17 23:22:56,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:56,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073967399] [2022-03-17 23:22:56,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:56,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:22:56,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:56,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073967399] [2022-03-17 23:22:56,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073967399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:56,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:56,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:22:56,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098135384] [2022-03-17 23:22:56,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:56,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:22:56,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:22:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:22:56,578 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:58,587 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 [] [2022-03-17 23:22:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:22:58,978 INFO L93 Difference]: Finished difference Result 665 states and 992 transitions. [2022-03-17 23:22:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:22:58,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-17 23:22:58,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:22:58,980 INFO L225 Difference]: With dead ends: 665 [2022-03-17 23:22:58,980 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 23:22:58,981 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:22:58,982 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:22:58,982 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:22:58,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 23:22:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 263. [2022-03-17 23:22:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4844961240310077) internal successors, (383), 258 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 387 transitions. [2022-03-17 23:22:58,992 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 387 transitions. Word has length 73 [2022-03-17 23:22:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:22:58,993 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 387 transitions. [2022-03-17 23:22:58,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:22:58,993 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 387 transitions. [2022-03-17 23:22:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 23:22:58,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:22:58,994 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-17 23:22:58,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:22:58,994 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:22:58,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:22:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash -841732619, now seen corresponding path program 1 times [2022-03-17 23:22:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:22:58,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634715092] [2022-03-17 23:22:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:22:58,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:22:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:22:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:22:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:22:59,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:22:59,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634715092] [2022-03-17 23:22:59,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634715092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:22:59,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:22:59,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:22:59,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072152108] [2022-03-17 23:22:59,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:22:59,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:22:59,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:22:59,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:22:59,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:22:59,141 INFO L87 Difference]: Start difference. First operand 263 states and 387 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:01,151 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 [] [2022-03-17 23:23:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:01,559 INFO L93 Difference]: Finished difference Result 667 states and 990 transitions. [2022-03-17 23:23:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:01,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-17 23:23:01,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:01,561 INFO L225 Difference]: With dead ends: 667 [2022-03-17 23:23:01,561 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 23:23:01,562 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:01,562 INFO L912 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:01,563 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 23:23:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 265. [2022-03-17 23:23:01,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.476923076923077) internal successors, (384), 260 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 388 transitions. [2022-03-17 23:23:01,571 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 388 transitions. Word has length 74 [2022-03-17 23:23:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:01,571 INFO L478 AbstractCegarLoop]: Abstraction has 265 states and 388 transitions. [2022-03-17 23:23:01,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 388 transitions. [2022-03-17 23:23:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 23:23:01,572 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:01,572 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-17 23:23:01,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:23:01,572 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:01,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:01,572 INFO L85 PathProgramCache]: Analyzing trace with hash -845929674, now seen corresponding path program 1 times [2022-03-17 23:23:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:01,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367173525] [2022-03-17 23:23:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:23:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367173525] [2022-03-17 23:23:01,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367173525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:01,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:01,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109677204] [2022-03-17 23:23:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:01,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:01,725 INFO L87 Difference]: Start difference. First operand 265 states and 388 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) [2022-03-17 23:23:03,734 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 [] [2022-03-17 23:23:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:04,121 INFO L93 Difference]: Finished difference Result 669 states and 988 transitions. [2022-03-17 23:23:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:04,122 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 [2022-03-17 23:23:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:04,123 INFO L225 Difference]: With dead ends: 669 [2022-03-17 23:23:04,123 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 23:23:04,124 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:04,124 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:04,125 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 23:23:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 267. [2022-03-17 23:23:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.4694656488549618) internal successors, (385), 262 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 389 transitions. [2022-03-17 23:23:04,132 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 389 transitions. Word has length 75 [2022-03-17 23:23:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:04,132 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 389 transitions. [2022-03-17 23:23:04,132 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) [2022-03-17 23:23:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 389 transitions. [2022-03-17 23:23:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-17 23:23:04,133 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:04,133 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:04,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:23:04,133 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash -942089998, now seen corresponding path program 1 times [2022-03-17 23:23:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:04,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236274852] [2022-03-17 23:23:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:23:04,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:04,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236274852] [2022-03-17 23:23:04,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236274852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:04,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:04,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:04,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647261363] [2022-03-17 23:23:04,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:04,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:04,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:04,262 INFO L87 Difference]: Start difference. First operand 267 states and 389 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) [2022-03-17 23:23:06,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:23:06,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:06,644 INFO L93 Difference]: Finished difference Result 671 states and 986 transitions. [2022-03-17 23:23:06,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:06,645 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 [2022-03-17 23:23:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:06,646 INFO L225 Difference]: With dead ends: 671 [2022-03-17 23:23:06,646 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 23:23:06,647 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:06,647 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:06,648 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 23:23:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 269. [2022-03-17 23:23:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.4621212121212122) internal successors, (386), 264 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) [2022-03-17 23:23:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 390 transitions. [2022-03-17 23:23:06,655 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 390 transitions. Word has length 76 [2022-03-17 23:23:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:06,655 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 390 transitions. [2022-03-17 23:23:06,656 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) [2022-03-17 23:23:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2022-03-17 23:23:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 23:23:06,656 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:06,656 INFO L500 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] [2022-03-17 23:23:06,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:23:06,656 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:06,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1179030540, now seen corresponding path program 1 times [2022-03-17 23:23:06,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:06,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414315835] [2022-03-17 23:23:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:06,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:06,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-17 23:23:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:06,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414315835] [2022-03-17 23:23:06,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414315835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:06,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:06,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:23:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837843349] [2022-03-17 23:23:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:06,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:23:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:23:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:06,834 INFO L87 Difference]: Start difference. First operand 269 states and 390 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:08,843 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 [] [2022-03-17 23:23:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:09,236 INFO L93 Difference]: Finished difference Result 542 states and 794 transitions. [2022-03-17 23:23:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:23:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 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 [2022-03-17 23:23:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:09,239 INFO L225 Difference]: With dead ends: 542 [2022-03-17 23:23:09,239 INFO L226 Difference]: Without dead ends: 404 [2022-03-17 23:23:09,239 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:09,240 INFO L912 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:09,240 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-17 23:23:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-03-17 23:23:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.456140350877193) internal successors, (581), 399 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 585 transitions. [2022-03-17 23:23:09,249 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 585 transitions. Word has length 77 [2022-03-17 23:23:09,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:09,249 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 585 transitions. [2022-03-17 23:23:09,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 585 transitions. [2022-03-17 23:23:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 23:23:09,250 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:09,250 INFO L500 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] [2022-03-17 23:23:09,250 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:23:09,251 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1210050347, now seen corresponding path program 1 times [2022-03-17 23:23:09,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:09,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375869669] [2022-03-17 23:23:09,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:09,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:23:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:09,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375869669] [2022-03-17 23:23:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375869669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:09,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:09,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:23:09,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842889627] [2022-03-17 23:23:09,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:09,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:23:09,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:23:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:09,382 INFO L87 Difference]: Start difference. First operand 404 states and 585 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 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) [2022-03-17 23:23:11,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:23:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:11,620 INFO L93 Difference]: Finished difference Result 702 states and 1019 transitions. [2022-03-17 23:23:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:23:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 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 [2022-03-17 23:23:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:11,622 INFO L225 Difference]: With dead ends: 702 [2022-03-17 23:23:11,622 INFO L226 Difference]: Without dead ends: 429 [2022-03-17 23:23:11,622 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:11,623 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:11,623 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 23:23:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-17 23:23:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-03-17 23:23:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4481132075471699) internal successors, (614), 424 states have internal predecessors, (614), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:11,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 618 transitions. [2022-03-17 23:23:11,633 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 618 transitions. Word has length 77 [2022-03-17 23:23:11,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:11,634 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 618 transitions. [2022-03-17 23:23:11,634 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 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) [2022-03-17 23:23:11,634 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 618 transitions. [2022-03-17 23:23:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 23:23:11,634 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:11,635 INFO L500 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] [2022-03-17 23:23:11,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:23:11,635 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash 464067919, now seen corresponding path program 1 times [2022-03-17 23:23:11,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:11,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725689778] [2022-03-17 23:23:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:11,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:23:11,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:11,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725689778] [2022-03-17 23:23:11,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725689778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:11,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:11,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:23:11,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397502371] [2022-03-17 23:23:11,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:11,821 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:23:11,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:11,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:23:11,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:11,822 INFO L87 Difference]: Start difference. First operand 429 states and 618 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 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) [2022-03-17 23:23:13,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:23:14,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:14,209 INFO L93 Difference]: Finished difference Result 861 states and 1249 transitions. [2022-03-17 23:23:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:23:14,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 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 97 [2022-03-17 23:23:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:14,212 INFO L225 Difference]: With dead ends: 861 [2022-03-17 23:23:14,212 INFO L226 Difference]: Without dead ends: 563 [2022-03-17 23:23:14,213 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:14,213 INFO L912 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:14,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-17 23:23:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-03-17 23:23:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4480286738351253) internal successors, (808), 558 states have internal predecessors, (808), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 812 transitions. [2022-03-17 23:23:14,224 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 812 transitions. Word has length 97 [2022-03-17 23:23:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:14,225 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 812 transitions. [2022-03-17 23:23:14,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 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) [2022-03-17 23:23:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 812 transitions. [2022-03-17 23:23:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:23:14,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:14,226 INFO L500 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] [2022-03-17 23:23:14,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:23:14,226 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-03-17 23:23:14,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:14,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082196450] [2022-03-17 23:23:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 23:23:14,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:14,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082196450] [2022-03-17 23:23:14,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082196450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:14,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:14,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:23:14,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871934307] [2022-03-17 23:23:14,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:14,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:23:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:23:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:14,355 INFO L87 Difference]: Start difference. First operand 563 states and 812 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:16,363 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 [] [2022-03-17 23:23:16,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:16,754 INFO L93 Difference]: Finished difference Result 1111 states and 1611 transitions. [2022-03-17 23:23:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:23:16,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 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 118 [2022-03-17 23:23:16,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:16,756 INFO L225 Difference]: With dead ends: 1111 [2022-03-17 23:23:16,756 INFO L226 Difference]: Without dead ends: 679 [2022-03-17 23:23:16,757 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:23:16,757 INFO L912 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 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 [2022-03-17 23:23:16,758 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-03-17 23:23:16,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-03-17 23:23:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.4480712166172107) internal successors, (976), 674 states have internal predecessors, (976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 980 transitions. [2022-03-17 23:23:16,769 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 980 transitions. Word has length 118 [2022-03-17 23:23:16,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:16,769 INFO L478 AbstractCegarLoop]: Abstraction has 679 states and 980 transitions. [2022-03-17 23:23:16,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:16,770 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 980 transitions. [2022-03-17 23:23:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 23:23:16,771 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:16,771 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:16,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:23:16,771 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash -65774092, now seen corresponding path program 1 times [2022-03-17 23:23:16,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:16,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539697446] [2022-03-17 23:23:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:16,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 23:23:16,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:16,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539697446] [2022-03-17 23:23:16,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539697446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:16,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:16,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:16,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862195172] [2022-03-17 23:23:16,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:16,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:16,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:16,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:16,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:16,928 INFO L87 Difference]: Start difference. First operand 679 states and 980 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:18,937 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 [] [2022-03-17 23:23:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:19,342 INFO L93 Difference]: Finished difference Result 1796 states and 2594 transitions. [2022-03-17 23:23:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:19,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 23:23:19,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:19,345 INFO L225 Difference]: With dead ends: 1796 [2022-03-17 23:23:19,346 INFO L226 Difference]: Without dead ends: 1133 [2022-03-17 23:23:19,347 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:19,348 INFO L912 BasicCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:19,348 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-03-17 23:23:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 784. [2022-03-17 23:23:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.4454428754813864) internal successors, (1126), 779 states have internal predecessors, (1126), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1130 transitions. [2022-03-17 23:23:19,368 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1130 transitions. Word has length 152 [2022-03-17 23:23:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:19,368 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1130 transitions. [2022-03-17 23:23:19,368 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1130 transitions. [2022-03-17 23:23:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 23:23:19,369 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:19,369 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:19,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:23:19,370 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:19,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:19,370 INFO L85 PathProgramCache]: Analyzing trace with hash 449746357, now seen corresponding path program 1 times [2022-03-17 23:23:19,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:19,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857120000] [2022-03-17 23:23:19,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:19,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-17 23:23:19,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:19,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857120000] [2022-03-17 23:23:19,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857120000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:19,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:19,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:19,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143349057] [2022-03-17 23:23:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:19,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:19,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:19,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:19,578 INFO L87 Difference]: Start difference. First operand 784 states and 1130 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:21,587 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 [] [2022-03-17 23:23:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:22,050 INFO L93 Difference]: Finished difference Result 1892 states and 2739 transitions. [2022-03-17 23:23:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:22,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 23:23:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:22,054 INFO L225 Difference]: With dead ends: 1892 [2022-03-17 23:23:22,054 INFO L226 Difference]: Without dead ends: 1258 [2022-03-17 23:23:22,055 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:22,055 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 111 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:22,055 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 502 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-03-17 23:23:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 869. [2022-03-17 23:23:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 864 states have (on average 1.4259259259259258) internal successors, (1232), 864 states have internal predecessors, (1232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1236 transitions. [2022-03-17 23:23:22,074 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1236 transitions. Word has length 152 [2022-03-17 23:23:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:22,074 INFO L478 AbstractCegarLoop]: Abstraction has 869 states and 1236 transitions. [2022-03-17 23:23:22,074 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1236 transitions. [2022-03-17 23:23:22,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 23:23:22,076 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:22,076 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:22,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:23:22,076 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:22,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:22,077 INFO L85 PathProgramCache]: Analyzing trace with hash 52767334, now seen corresponding path program 1 times [2022-03-17 23:23:22,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:22,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717539060] [2022-03-17 23:23:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:22,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-17 23:23:22,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:22,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717539060] [2022-03-17 23:23:22,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717539060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:22,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:22,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:22,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374239426] [2022-03-17 23:23:22,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:22,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:22,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:22,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:22,252 INFO L87 Difference]: Start difference. First operand 869 states and 1236 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:24,261 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 [] [2022-03-17 23:23:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:24,686 INFO L93 Difference]: Finished difference Result 1939 states and 2786 transitions. [2022-03-17 23:23:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 23:23:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:24,690 INFO L225 Difference]: With dead ends: 1939 [2022-03-17 23:23:24,690 INFO L226 Difference]: Without dead ends: 1237 [2022-03-17 23:23:24,691 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:24,691 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 105 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:24,691 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 498 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:23:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-03-17 23:23:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 876. [2022-03-17 23:23:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 871 states have (on average 1.4179104477611941) internal successors, (1235), 871 states have internal predecessors, (1235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1239 transitions. [2022-03-17 23:23:24,708 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1239 transitions. Word has length 153 [2022-03-17 23:23:24,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:24,708 INFO L478 AbstractCegarLoop]: Abstraction has 876 states and 1239 transitions. [2022-03-17 23:23:24,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:24,708 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1239 transitions. [2022-03-17 23:23:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-17 23:23:24,710 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:24,710 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:24,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:23:24,710 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -316129618, now seen corresponding path program 1 times [2022-03-17 23:23:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:24,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915295483] [2022-03-17 23:23:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 23:23:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:24,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915295483] [2022-03-17 23:23:24,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915295483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:23:24,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:23:24,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:23:24,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973900596] [2022-03-17 23:23:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:23:24,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:23:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:23:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:23:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:23:24,893 INFO L87 Difference]: Start difference. First operand 876 states and 1239 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:26,902 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 [] [2022-03-17 23:23:27,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:23:27,231 INFO L93 Difference]: Finished difference Result 1895 states and 2672 transitions. [2022-03-17 23:23:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:23:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-17 23:23:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:23:27,235 INFO L225 Difference]: With dead ends: 1895 [2022-03-17 23:23:27,235 INFO L226 Difference]: Without dead ends: 1035 [2022-03-17 23:23:27,236 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:23:27,237 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 32 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:23:27,237 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 493 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:23:27,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-03-17 23:23:27,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 972. [2022-03-17 23:23:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.4177869700103412) internal successors, (1371), 967 states have internal predecessors, (1371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1375 transitions. [2022-03-17 23:23:27,255 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1375 transitions. Word has length 188 [2022-03-17 23:23:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:23:27,255 INFO L478 AbstractCegarLoop]: Abstraction has 972 states and 1375 transitions. [2022-03-17 23:23:27,256 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:23:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1375 transitions. [2022-03-17 23:23:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-17 23:23:27,257 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:23:27,258 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:23:27,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:23:27,258 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:23:27,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:23:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash -55743268, now seen corresponding path program 2 times [2022-03-17 23:23:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:23:27,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771698045] [2022-03-17 23:23:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:23:27,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:23:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:23:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:23:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 366 proven. 1 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-17 23:23:27,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:23:27,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771698045] [2022-03-17 23:23:27,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771698045] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:23:27,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346414240] [2022-03-17 23:23:27,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-17 23:23:27,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:23:27,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:23:27,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:23:27,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:24:50,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-17 23:24:50,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-17 23:24:50,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 23:24:50,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:24:51,065 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 23:24:51,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 23:24:51,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 23:24:51,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 23:24:51,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 23:24:51,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-17 23:24:51,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 23:24:51,392 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 23:24:51,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-17 23:24:51,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 23:24:51,435 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:24:51,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:24:51,517 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:24:51,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:24:51,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:24:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 328 proven. 40 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-03-17 23:24:51,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:24:51,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-03-17 23:24:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 334 proven. 9 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-03-17 23:24:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346414240] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:24:51,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:24:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2022-03-17 23:24:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936116860] [2022-03-17 23:24:51,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:24:51,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-17 23:24:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:24:51,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-17 23:24:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-17 23:24:51,994 INFO L87 Difference]: Start difference. First operand 972 states and 1375 transitions. Second operand has 14 states, 14 states have (on average 13.5) internal successors, (189), 13 states have internal predecessors, (189), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:54,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:24:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:24:56,290 INFO L93 Difference]: Finished difference Result 3961 states and 5655 transitions. [2022-03-17 23:24:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-17 23:24:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.5) internal successors, (189), 13 states have internal predecessors, (189), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2022-03-17 23:24:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:24:56,299 INFO L225 Difference]: With dead ends: 3961 [2022-03-17 23:24:56,299 INFO L226 Difference]: Without dead ends: 3005 [2022-03-17 23:24:56,301 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2022-03-17 23:24:56,301 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 867 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 271 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:24:56,302 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 2341 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2362 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:24:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2022-03-17 23:24:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1701. [2022-03-17 23:24:56,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1696 states have (on average 1.4339622641509433) internal successors, (2432), 1696 states have internal predecessors, (2432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2436 transitions. [2022-03-17 23:24:56,351 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2436 transitions. Word has length 206 [2022-03-17 23:24:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:24:56,351 INFO L478 AbstractCegarLoop]: Abstraction has 1701 states and 2436 transitions. [2022-03-17 23:24:56,351 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.5) internal successors, (189), 13 states have internal predecessors, (189), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2436 transitions. [2022-03-17 23:24:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-17 23:24:56,354 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:24:56,354 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:24:56,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 23:24:56,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-17 23:24:56,567 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:24:56,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:24:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash 85822156, now seen corresponding path program 1 times [2022-03-17 23:24:56,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:24:56,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562320721] [2022-03-17 23:24:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:24:56,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:24:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:24:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:24:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:24:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-03-17 23:24:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:24:56,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562320721] [2022-03-17 23:24:56,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562320721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:24:56,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:24:56,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:24:56,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590668401] [2022-03-17 23:24:56,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:24:56,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:24:56,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:24:56,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:24:56,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:24:56,738 INFO L87 Difference]: Start difference. First operand 1701 states and 2436 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:58,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:24:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:24:59,150 INFO L93 Difference]: Finished difference Result 3942 states and 5650 transitions. [2022-03-17 23:24:59,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:24:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 208 [2022-03-17 23:24:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:24:59,156 INFO L225 Difference]: With dead ends: 3942 [2022-03-17 23:24:59,156 INFO L226 Difference]: Without dead ends: 2257 [2022-03-17 23:24:59,158 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:24:59,159 INFO L912 BasicCegarLoop]: 101 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:24:59,159 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:24:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-03-17 23:24:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1701. [2022-03-17 23:24:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1696 states have (on average 1.4204009433962264) internal successors, (2409), 1696 states have internal predecessors, (2409), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2413 transitions. [2022-03-17 23:24:59,195 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2413 transitions. Word has length 208 [2022-03-17 23:24:59,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:24:59,195 INFO L478 AbstractCegarLoop]: Abstraction has 1701 states and 2413 transitions. [2022-03-17 23:24:59,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:24:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2413 transitions. [2022-03-17 23:24:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-17 23:24:59,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:24:59,198 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:24:59,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:24:59,198 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:24:59,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:24:59,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2059619179, now seen corresponding path program 1 times [2022-03-17 23:24:59,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:24:59,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087365097] [2022-03-17 23:24:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:24:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:24:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:24:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:24:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:24:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-17 23:24:59,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:24:59,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087365097] [2022-03-17 23:24:59,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087365097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:24:59,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:24:59,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:24:59,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358211374] [2022-03-17 23:24:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:24:59,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:24:59,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:24:59,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:24:59,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:24:59,347 INFO L87 Difference]: Start difference. First operand 1701 states and 2413 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:01,357 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 [] [2022-03-17 23:25:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:01,647 INFO L93 Difference]: Finished difference Result 3436 states and 4859 transitions. [2022-03-17 23:25:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:01,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 208 [2022-03-17 23:25:01,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:01,669 INFO L225 Difference]: With dead ends: 3436 [2022-03-17 23:25:01,670 INFO L226 Difference]: Without dead ends: 1751 [2022-03-17 23:25:01,672 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:01,672 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:01,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 471 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-03-17 23:25:01,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1701. [2022-03-17 23:25:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1696 states have (on average 1.415683962264151) internal successors, (2401), 1696 states have internal predecessors, (2401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2405 transitions. [2022-03-17 23:25:01,703 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2405 transitions. Word has length 208 [2022-03-17 23:25:01,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:01,704 INFO L478 AbstractCegarLoop]: Abstraction has 1701 states and 2405 transitions. [2022-03-17 23:25:01,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2405 transitions. [2022-03-17 23:25:01,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-03-17 23:25:01,706 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:01,706 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:01,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:25:01,707 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:01,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash 76545642, now seen corresponding path program 1 times [2022-03-17 23:25:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:01,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323153907] [2022-03-17 23:25:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:01,882 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-17 23:25:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:01,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323153907] [2022-03-17 23:25:01,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323153907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:01,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:01,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:01,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238441837] [2022-03-17 23:25:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:01,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:01,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:01,883 INFO L87 Difference]: Start difference. First operand 1701 states and 2405 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:03,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:04,318 INFO L93 Difference]: Finished difference Result 4202 states and 5928 transitions. [2022-03-17 23:25:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:04,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-03-17 23:25:04,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:04,325 INFO L225 Difference]: With dead ends: 4202 [2022-03-17 23:25:04,325 INFO L226 Difference]: Without dead ends: 2517 [2022-03-17 23:25:04,328 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:04,328 INFO L912 BasicCegarLoop]: 102 mSDtfsCounter, 91 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:04,328 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 288 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-03-17 23:25:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2081. [2022-03-17 23:25:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 2076 states have (on average 1.4311175337186899) internal successors, (2971), 2076 states have internal predecessors, (2971), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2975 transitions. [2022-03-17 23:25:04,371 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2975 transitions. Word has length 211 [2022-03-17 23:25:04,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:04,371 INFO L478 AbstractCegarLoop]: Abstraction has 2081 states and 2975 transitions. [2022-03-17 23:25:04,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2975 transitions. [2022-03-17 23:25:04,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-17 23:25:04,374 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:04,375 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:04,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:25:04,375 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:04,375 INFO L85 PathProgramCache]: Analyzing trace with hash -615376590, now seen corresponding path program 1 times [2022-03-17 23:25:04,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:04,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125314563] [2022-03-17 23:25:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:04,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-17 23:25:04,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:04,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125314563] [2022-03-17 23:25:04,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125314563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:04,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:04,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:04,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467480994] [2022-03-17 23:25:04,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:04,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:04,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:04,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:04,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:04,538 INFO L87 Difference]: Start difference. First operand 2081 states and 2975 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:06,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:06,942 INFO L93 Difference]: Finished difference Result 4702 states and 6728 transitions. [2022-03-17 23:25:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:06,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-17 23:25:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:06,949 INFO L225 Difference]: With dead ends: 4702 [2022-03-17 23:25:06,949 INFO L226 Difference]: Without dead ends: 2637 [2022-03-17 23:25:06,952 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:06,953 INFO L912 BasicCegarLoop]: 101 mSDtfsCounter, 90 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:06,953 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-03-17 23:25:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2211. [2022-03-17 23:25:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2206 states have (on average 1.4601087941976427) internal successors, (3221), 2206 states have internal predecessors, (3221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3225 transitions. [2022-03-17 23:25:07,000 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3225 transitions. Word has length 212 [2022-03-17 23:25:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:07,000 INFO L478 AbstractCegarLoop]: Abstraction has 2211 states and 3225 transitions. [2022-03-17 23:25:07,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3225 transitions. [2022-03-17 23:25:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-17 23:25:07,004 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:07,004 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:07,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:25:07,005 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:07,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1973118987, now seen corresponding path program 1 times [2022-03-17 23:25:07,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:07,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664305711] [2022-03-17 23:25:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:07,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-17 23:25:07,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:07,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664305711] [2022-03-17 23:25:07,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664305711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:07,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:07,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:07,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024866056] [2022-03-17 23:25:07,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:07,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:07,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:07,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:07,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:07,198 INFO L87 Difference]: Start difference. First operand 2211 states and 3225 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:09,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:09,588 INFO L93 Difference]: Finished difference Result 4832 states and 6968 transitions. [2022-03-17 23:25:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-17 23:25:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:09,596 INFO L225 Difference]: With dead ends: 4832 [2022-03-17 23:25:09,597 INFO L226 Difference]: Without dead ends: 2637 [2022-03-17 23:25:09,599 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:09,600 INFO L912 BasicCegarLoop]: 101 mSDtfsCounter, 88 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:09,600 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-03-17 23:25:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2221. [2022-03-17 23:25:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2216 states have (on average 1.4580324909747293) internal successors, (3231), 2216 states have internal predecessors, (3231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3235 transitions. [2022-03-17 23:25:09,645 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3235 transitions. Word has length 212 [2022-03-17 23:25:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:09,645 INFO L478 AbstractCegarLoop]: Abstraction has 2221 states and 3235 transitions. [2022-03-17 23:25:09,646 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3235 transitions. [2022-03-17 23:25:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-17 23:25:09,649 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:09,649 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:09,649 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:25:09,649 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash 714270050, now seen corresponding path program 1 times [2022-03-17 23:25:09,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:09,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286906857] [2022-03-17 23:25:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:09,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-17 23:25:09,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:09,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286906857] [2022-03-17 23:25:09,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286906857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:09,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:09,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:09,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545942440] [2022-03-17 23:25:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:09,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:09,840 INFO L87 Difference]: Start difference. First operand 2221 states and 3235 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:11,850 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 [] [2022-03-17 23:25:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:12,264 INFO L93 Difference]: Finished difference Result 4832 states and 6958 transitions. [2022-03-17 23:25:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:12,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-17 23:25:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:12,274 INFO L225 Difference]: With dead ends: 4832 [2022-03-17 23:25:12,274 INFO L226 Difference]: Without dead ends: 2627 [2022-03-17 23:25:12,277 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:12,278 INFO L912 BasicCegarLoop]: 102 mSDtfsCounter, 85 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:12,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 288 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:12,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-03-17 23:25:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2231. [2022-03-17 23:25:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2226 states have (on average 1.4559748427672956) internal successors, (3241), 2226 states have internal predecessors, (3241), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3245 transitions. [2022-03-17 23:25:12,356 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3245 transitions. Word has length 213 [2022-03-17 23:25:12,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:12,357 INFO L478 AbstractCegarLoop]: Abstraction has 2231 states and 3245 transitions. [2022-03-17 23:25:12,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3245 transitions. [2022-03-17 23:25:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-17 23:25:12,360 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:12,360 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:12,360 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:25:12,360 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:12,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:12,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1938410075, now seen corresponding path program 1 times [2022-03-17 23:25:12,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:12,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191933162] [2022-03-17 23:25:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:12,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-03-17 23:25:12,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:12,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191933162] [2022-03-17 23:25:12,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191933162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:12,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:12,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:12,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520580014] [2022-03-17 23:25:12,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:12,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:12,546 INFO L87 Difference]: Start difference. First operand 2231 states and 3245 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:14,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:14,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:14,918 INFO L93 Difference]: Finished difference Result 4844 states and 6993 transitions. [2022-03-17 23:25:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:14,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-17 23:25:14,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:14,923 INFO L225 Difference]: With dead ends: 4844 [2022-03-17 23:25:14,923 INFO L226 Difference]: Without dead ends: 2629 [2022-03-17 23:25:14,925 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:14,926 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 29 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:14,926 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 488 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-03-17 23:25:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2491. [2022-03-17 23:25:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2486 states have (on average 1.4444891391794046) internal successors, (3591), 2486 states have internal predecessors, (3591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:14,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3595 transitions. [2022-03-17 23:25:14,972 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3595 transitions. Word has length 214 [2022-03-17 23:25:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:14,972 INFO L478 AbstractCegarLoop]: Abstraction has 2491 states and 3595 transitions. [2022-03-17 23:25:14,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3595 transitions. [2022-03-17 23:25:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-17 23:25:14,976 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:14,976 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:14,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:25:14,976 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1477522265, now seen corresponding path program 1 times [2022-03-17 23:25:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87438013] [2022-03-17 23:25:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-03-17 23:25:15,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:15,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87438013] [2022-03-17 23:25:15,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87438013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:15,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:15,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:15,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081136624] [2022-03-17 23:25:15,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:15,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:15,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:15,173 INFO L87 Difference]: Start difference. First operand 2491 states and 3595 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:17,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:17,531 INFO L93 Difference]: Finished difference Result 4805 states and 6884 transitions. [2022-03-17 23:25:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:17,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 233 [2022-03-17 23:25:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:17,536 INFO L225 Difference]: With dead ends: 4805 [2022-03-17 23:25:17,536 INFO L226 Difference]: Without dead ends: 2330 [2022-03-17 23:25:17,539 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:17,539 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:17,539 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-03-17 23:25:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2264. [2022-03-17 23:25:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 2259 states have (on average 1.424081451969898) internal successors, (3217), 2259 states have internal predecessors, (3217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:17,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3221 transitions. [2022-03-17 23:25:17,580 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3221 transitions. Word has length 233 [2022-03-17 23:25:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:17,581 INFO L478 AbstractCegarLoop]: Abstraction has 2264 states and 3221 transitions. [2022-03-17 23:25:17,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:17,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3221 transitions. [2022-03-17 23:25:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-17 23:25:17,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:17,584 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:17,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:25:17,584 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:17,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1792387938, now seen corresponding path program 1 times [2022-03-17 23:25:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:17,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704307869] [2022-03-17 23:25:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-03-17 23:25:17,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:17,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704307869] [2022-03-17 23:25:17,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704307869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:17,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:17,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:17,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380828861] [2022-03-17 23:25:17,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:17,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:17,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:17,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:17,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:17,791 INFO L87 Difference]: Start difference. First operand 2264 states and 3221 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:19,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:20,143 INFO L93 Difference]: Finished difference Result 4876 states and 6903 transitions. [2022-03-17 23:25:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-17 23:25:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:20,147 INFO L225 Difference]: With dead ends: 4876 [2022-03-17 23:25:20,147 INFO L226 Difference]: Without dead ends: 2628 [2022-03-17 23:25:20,150 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:20,151 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:20,151 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 492 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2022-03-17 23:25:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2496. [2022-03-17 23:25:20,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2491 states have (on average 1.4199116820553994) internal successors, (3537), 2491 states have internal predecessors, (3537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3541 transitions. [2022-03-17 23:25:20,193 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3541 transitions. Word has length 239 [2022-03-17 23:25:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:20,193 INFO L478 AbstractCegarLoop]: Abstraction has 2496 states and 3541 transitions. [2022-03-17 23:25:20,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3541 transitions. [2022-03-17 23:25:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-17 23:25:20,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:20,198 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:20,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:25:20,198 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash 839186305, now seen corresponding path program 1 times [2022-03-17 23:25:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:20,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574375659] [2022-03-17 23:25:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:20,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-03-17 23:25:20,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:20,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574375659] [2022-03-17 23:25:20,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574375659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:20,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:20,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941989639] [2022-03-17 23:25:20,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:20,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:20,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:20,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:20,422 INFO L87 Difference]: Start difference. First operand 2496 states and 3541 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:22,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:22,805 INFO L93 Difference]: Finished difference Result 5388 states and 7631 transitions. [2022-03-17 23:25:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:22,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-17 23:25:22,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:22,809 INFO L225 Difference]: With dead ends: 5388 [2022-03-17 23:25:22,809 INFO L226 Difference]: Without dead ends: 2908 [2022-03-17 23:25:22,813 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:22,813 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 38 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:22,813 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 504 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2022-03-17 23:25:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2752. [2022-03-17 23:25:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2747 states have (on average 1.4244630506006553) internal successors, (3913), 2747 states have internal predecessors, (3913), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3917 transitions. [2022-03-17 23:25:22,875 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3917 transitions. Word has length 239 [2022-03-17 23:25:22,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:22,875 INFO L478 AbstractCegarLoop]: Abstraction has 2752 states and 3917 transitions. [2022-03-17 23:25:22,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3917 transitions. [2022-03-17 23:25:22,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 23:25:22,879 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:22,879 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:22,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:25:22,879 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:22,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash 534238815, now seen corresponding path program 1 times [2022-03-17 23:25:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:22,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053441905] [2022-03-17 23:25:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:23,114 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:23,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:23,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053441905] [2022-03-17 23:25:23,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053441905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:23,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:23,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:23,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387685627] [2022-03-17 23:25:23,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:23,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:23,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:23,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:23,116 INFO L87 Difference]: Start difference. First operand 2752 states and 3917 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:25,125 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 [] [2022-03-17 23:25:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:25,509 INFO L93 Difference]: Finished difference Result 5753 states and 8185 transitions. [2022-03-17 23:25:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:25,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-17 23:25:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:25,515 INFO L225 Difference]: With dead ends: 5753 [2022-03-17 23:25:25,516 INFO L226 Difference]: Without dead ends: 3017 [2022-03-17 23:25:25,519 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:25,519 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 60 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:25,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 512 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-03-17 23:25:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2852. [2022-03-17 23:25:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2847 states have (on average 1.420793818054092) internal successors, (4045), 2847 states have internal predecessors, (4045), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4049 transitions. [2022-03-17 23:25:25,567 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4049 transitions. Word has length 267 [2022-03-17 23:25:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:25,567 INFO L478 AbstractCegarLoop]: Abstraction has 2852 states and 4049 transitions. [2022-03-17 23:25:25,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4049 transitions. [2022-03-17 23:25:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 23:25:25,571 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:25,571 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:25,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:25:25,571 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:25,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1542970528, now seen corresponding path program 1 times [2022-03-17 23:25:25,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:25,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245484285] [2022-03-17 23:25:25,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:25,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:25,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:25,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245484285] [2022-03-17 23:25:25,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245484285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:25,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:25,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:25,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748217939] [2022-03-17 23:25:25,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:25,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:25,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:25,792 INFO L87 Difference]: Start difference. First operand 2852 states and 4049 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:27,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:28,127 INFO L93 Difference]: Finished difference Result 5709 states and 8104 transitions. [2022-03-17 23:25:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-17 23:25:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:28,131 INFO L225 Difference]: With dead ends: 5709 [2022-03-17 23:25:28,131 INFO L226 Difference]: Without dead ends: 2873 [2022-03-17 23:25:28,134 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:28,134 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 16 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:28,134 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 461 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 324 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:28,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-03-17 23:25:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2852. [2022-03-17 23:25:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2847 states have (on average 1.4193888303477344) internal successors, (4041), 2847 states have internal predecessors, (4041), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4045 transitions. [2022-03-17 23:25:28,181 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4045 transitions. Word has length 267 [2022-03-17 23:25:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:28,181 INFO L478 AbstractCegarLoop]: Abstraction has 2852 states and 4045 transitions. [2022-03-17 23:25:28,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4045 transitions. [2022-03-17 23:25:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-03-17 23:25:28,185 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:28,185 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:28,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:25:28,185 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash 717723451, now seen corresponding path program 1 times [2022-03-17 23:25:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:28,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364675702] [2022-03-17 23:25:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:28,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364675702] [2022-03-17 23:25:28,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364675702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:28,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:28,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688547663] [2022-03-17 23:25:28,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:28,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:28,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:28,413 INFO L87 Difference]: Start difference. First operand 2852 states and 4045 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:30,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:30,839 INFO L93 Difference]: Finished difference Result 5853 states and 8305 transitions. [2022-03-17 23:25:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:30,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2022-03-17 23:25:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:30,844 INFO L225 Difference]: With dead ends: 5853 [2022-03-17 23:25:30,844 INFO L226 Difference]: Without dead ends: 3017 [2022-03-17 23:25:30,848 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:30,849 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 62 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:30,849 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 510 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-03-17 23:25:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2852. [2022-03-17 23:25:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2847 states have (on average 1.417983842641377) internal successors, (4037), 2847 states have internal predecessors, (4037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4041 transitions. [2022-03-17 23:25:30,926 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4041 transitions. Word has length 287 [2022-03-17 23:25:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:30,926 INFO L478 AbstractCegarLoop]: Abstraction has 2852 states and 4041 transitions. [2022-03-17 23:25:30,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:30,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4041 transitions. [2022-03-17 23:25:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-03-17 23:25:30,930 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:30,930 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:30,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:25:30,931 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2118539755, now seen corresponding path program 1 times [2022-03-17 23:25:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:30,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585720671] [2022-03-17 23:25:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:30,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:31,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585720671] [2022-03-17 23:25:31,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585720671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:31,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:31,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238869818] [2022-03-17 23:25:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:31,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:31,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:31,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:31,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:31,139 INFO L87 Difference]: Start difference. First operand 2852 states and 4041 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:33,147 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 [] [2022-03-17 23:25:33,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:33,584 INFO L93 Difference]: Finished difference Result 5841 states and 8284 transitions. [2022-03-17 23:25:33,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:33,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 288 [2022-03-17 23:25:33,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:33,588 INFO L225 Difference]: With dead ends: 5841 [2022-03-17 23:25:33,588 INFO L226 Difference]: Without dead ends: 3005 [2022-03-17 23:25:33,592 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:33,592 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 57 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:33,592 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 502 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:25:33,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2022-03-17 23:25:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2852. [2022-03-17 23:25:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2847 states have (on average 1.4165788549350193) internal successors, (4033), 2847 states have internal predecessors, (4033), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4037 transitions. [2022-03-17 23:25:33,641 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4037 transitions. Word has length 288 [2022-03-17 23:25:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:33,641 INFO L478 AbstractCegarLoop]: Abstraction has 2852 states and 4037 transitions. [2022-03-17 23:25:33,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4037 transitions. [2022-03-17 23:25:33,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-03-17 23:25:33,645 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:33,645 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:33,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:25:33,645 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:33,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash 969411152, now seen corresponding path program 1 times [2022-03-17 23:25:33,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:33,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755642747] [2022-03-17 23:25:33,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:33,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:33,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:33,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755642747] [2022-03-17 23:25:33,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755642747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:33,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:33,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462874216] [2022-03-17 23:25:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:33,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:33,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:33,874 INFO L87 Difference]: Start difference. First operand 2852 states and 4037 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:35,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:37,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:39,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:41,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:25:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:42,319 INFO L93 Difference]: Finished difference Result 6007 states and 8448 transitions. [2022-03-17 23:25:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 292 [2022-03-17 23:25:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:42,323 INFO L225 Difference]: With dead ends: 6007 [2022-03-17 23:25:42,323 INFO L226 Difference]: Without dead ends: 3171 [2022-03-17 23:25:42,327 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:42,330 INFO L912 BasicCegarLoop]: 102 mSDtfsCounter, 97 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:42,330 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 288 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-17 23:25:42,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-03-17 23:25:42,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2852. [2022-03-17 23:25:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2847 states have (on average 1.4053389532841587) internal successors, (4001), 2847 states have internal predecessors, (4001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4005 transitions. [2022-03-17 23:25:42,403 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4005 transitions. Word has length 292 [2022-03-17 23:25:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:42,403 INFO L478 AbstractCegarLoop]: Abstraction has 2852 states and 4005 transitions. [2022-03-17 23:25:42,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4005 transitions. [2022-03-17 23:25:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-03-17 23:25:42,406 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:42,407 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:42,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:25:42,407 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1619509744, now seen corresponding path program 1 times [2022-03-17 23:25:42,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:42,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787078209] [2022-03-17 23:25:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:42,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 185 proven. 13 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-03-17 23:25:42,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:42,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787078209] [2022-03-17 23:25:42,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787078209] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:25:42,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140273492] [2022-03-17 23:25:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:42,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:25:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:25:42,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:25:42,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 23:25:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:43,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 23:25:43,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:25:43,728 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 23:25:43,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 23:25:43,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 23:25:43,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 23:25:43,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 23:25:43,858 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 23:25:43,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 23:25:43,907 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:25:43,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:25:44,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:25:44,208 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:25:44,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:25:44,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:25:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 178 proven. 123 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-03-17 23:25:44,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:25:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-03-17 23:25:44,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140273492] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:25:44,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:25:44,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 23:25:44,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128679364] [2022-03-17 23:25:44,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:44,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:25:44,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:44,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:25:44,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:25:44,583 INFO L87 Difference]: Start difference. First operand 2852 states and 4005 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:46,590 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 [] [2022-03-17 23:25:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:46,908 INFO L93 Difference]: Finished difference Result 6007 states and 8384 transitions. [2022-03-17 23:25:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:25:46,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 292 [2022-03-17 23:25:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:46,913 INFO L225 Difference]: With dead ends: 6007 [2022-03-17 23:25:46,913 INFO L226 Difference]: Without dead ends: 3171 [2022-03-17 23:25:46,916 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:25:46,917 INFO L912 BasicCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:46,917 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 298 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 23:25:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-03-17 23:25:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2844. [2022-03-17 23:25:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2839 states have (on average 1.3923916872138076) internal successors, (3953), 2839 states have internal predecessors, (3953), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3957 transitions. [2022-03-17 23:25:46,969 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3957 transitions. Word has length 292 [2022-03-17 23:25:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:46,970 INFO L478 AbstractCegarLoop]: Abstraction has 2844 states and 3957 transitions. [2022-03-17 23:25:46,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3957 transitions. [2022-03-17 23:25:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-03-17 23:25:46,973 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:46,974 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:46,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 23:25:47,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-03-17 23:25:47,198 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:47,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1263432505, now seen corresponding path program 1 times [2022-03-17 23:25:47,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:47,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955714249] [2022-03-17 23:25:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:47,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-03-17 23:25:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:47,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955714249] [2022-03-17 23:25:47,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955714249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:25:47,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:25:47,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:25:47,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809839194] [2022-03-17 23:25:47,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:25:47,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:25:47,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:25:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:25:47,440 INFO L87 Difference]: Start difference. First operand 2844 states and 3957 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:49,448 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 [] [2022-03-17 23:25:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:25:49,848 INFO L93 Difference]: Finished difference Result 5593 states and 7693 transitions. [2022-03-17 23:25:49,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:25:49,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 305 [2022-03-17 23:25:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:25:49,851 INFO L225 Difference]: With dead ends: 5593 [2022-03-17 23:25:49,851 INFO L226 Difference]: Without dead ends: 2757 [2022-03-17 23:25:49,854 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:25:49,854 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 80 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:49,854 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 294 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:25:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-03-17 23:25:49,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1603. [2022-03-17 23:25:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1598 states have (on average 1.3823529411764706) internal successors, (2209), 1598 states have internal predecessors, (2209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2213 transitions. [2022-03-17 23:25:49,890 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2213 transitions. Word has length 305 [2022-03-17 23:25:49,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:25:49,891 INFO L478 AbstractCegarLoop]: Abstraction has 1603 states and 2213 transitions. [2022-03-17 23:25:49,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2213 transitions. [2022-03-17 23:25:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-03-17 23:25:49,893 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:25:49,893 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:25:49,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:25:49,893 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:25:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:25:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2074742642, now seen corresponding path program 1 times [2022-03-17 23:25:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:25:49,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190967916] [2022-03-17 23:25:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:25:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:25:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 546 proven. 238 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-03-17 23:25:53,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:25:53,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190967916] [2022-03-17 23:25:53,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190967916] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:25:53,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373326492] [2022-03-17 23:25:53,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:25:53,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:25:53,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:25:53,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:25:53,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 23:25:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:25:54,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 299 conjunts are in the unsatisfiable core [2022-03-17 23:25:54,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:25:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:54,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:25:54,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:25:54,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:25:54,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 32325 treesize of output 29149 [2022-03-17 23:25:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:55,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29044 treesize of output 28989 [2022-03-17 23:25:55,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:56,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:25:56,977 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: class de.uni_freiburg.informatik.ultimate.logic.TermVariable cannot be cast to class de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm (de.uni_freiburg.informatik.ultimate.logic.TermVariable and de.uni_freiburg.informatik.ultimate.logic.ApplicationTerm are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @3b4ef7) [2022-03-17 23:25:56,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-03-17 23:25:56,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-03-17 23:25:56,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934565464] [2022-03-17 23:25:56,977 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-03-17 23:25:56,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-17 23:25:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:25:56,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-17 23:25:56,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:25:56,979 INFO L87 Difference]: Start difference. First operand 1603 states and 2213 transitions. Second operand has 11 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:25:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 23:25:56,979 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:25:56,979 INFO L912 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:25:56,980 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 23:25:57,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 23:25:57,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:25:57,200 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@35d57613 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:455) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:852) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:769) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:470) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-17 23:25:57,204 INFO L158 Benchmark]: Toolchain (without parser) took 194596.38ms. Allocated memory was 173.0MB in the beginning and 672.1MB in the end (delta: 499.1MB). Free memory was 119.9MB in the beginning and 177.1MB in the end (delta: -57.2MB). Peak memory consumption was 442.4MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.03ms. Allocated memory was 173.0MB in the beginning and 225.4MB in the end (delta: 52.4MB). Free memory was 119.8MB in the beginning and 184.1MB in the end (delta: -64.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: Boogie Preprocessor took 111.35ms. Allocated memory is still 225.4MB. Free memory was 184.1MB in the beginning and 176.9MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: RCFGBuilder took 2195.77ms. Allocated memory is still 225.4MB. Free memory was 176.9MB in the beginning and 89.3MB in the end (delta: 87.6MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: IcfgTransformer took 33.39ms. Allocated memory is still 225.4MB. Free memory was 89.3MB in the beginning and 84.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,204 INFO L158 Benchmark]: TraceAbstraction took 191730.64ms. Allocated memory was 225.4MB in the beginning and 672.1MB in the end (delta: 446.7MB). Free memory was 83.6MB in the beginning and 177.1MB in the end (delta: -93.6MB). Peak memory consumption was 353.7MB. Max. memory is 8.0GB. [2022-03-17 23:25:57,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 518.03ms. Allocated memory was 173.0MB in the beginning and 225.4MB in the end (delta: 52.4MB). Free memory was 119.8MB in the beginning and 184.1MB in the end (delta: -64.3MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.35ms. Allocated memory is still 225.4MB. Free memory was 184.1MB in the beginning and 176.9MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2195.77ms. Allocated memory is still 225.4MB. Free memory was 176.9MB in the beginning and 89.3MB in the end (delta: 87.6MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * IcfgTransformer took 33.39ms. Allocated memory is still 225.4MB. Free memory was 89.3MB in the beginning and 84.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 191730.64ms. Allocated memory was 225.4MB in the beginning and 672.1MB in the end (delta: 446.7MB). Free memory was 83.6MB in the beginning and 177.1MB in the end (delta: -93.6MB). Peak memory consumption was 353.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@35d57613 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@35d57613: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-17 23:25:57,239 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...