/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-05ce600 [2022-02-24 00:38:39,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:38:39,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:38:39,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 00:38:39,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:38:39,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:38:39,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:38:39,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:38:39,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:38:39,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:38:39,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:38:39,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:38:39,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:38:39,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:38:39,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:38:39,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:38:39,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:38:39,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:38:39,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:38:39,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:38:39,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:38:39,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:38:39,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:38:39,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:38:39,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:38:39,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:38:39,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:38:39,776 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:38:39,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:38:39,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:38:39,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:38:39,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:38:39,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:38:39,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:38:39,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:38:39,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:38:39,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:38:39,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:38:39,781 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:38:39,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:38:39,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:38:39,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:38:39,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:38:39,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:38:39,994 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:38:39,995 INFO L432 ainManager$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 [2022-02-24 00:38:40,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fddf1bb/e79aada314ec41c79193b7ec262bd5d5/FLAG42966fef0 [2022-02-24 00:38:40,579 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:38:40,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-02-24 00:38:40,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fddf1bb/e79aada314ec41c79193b7ec262bd5d5/FLAG42966fef0 [2022-02-24 00:38:41,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75fddf1bb/e79aada314ec41c79193b7ec262bd5d5 [2022-02-24 00:38:41,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:38:41,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:38:41,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:38:41,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:38:41,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:38:41,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7442863b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41, skipping insertion in model container [2022-02-24 00:38:41,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:38:41,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:38:41,502 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] [2022-02-24 00:38:41,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:38:41,534 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:38:41,644 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] [2022-02-24 00:38:41,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:38:41,664 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:38:41,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41 WrapperNode [2022-02-24 00:38:41,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:38:41,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:38:41,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:38:41,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:38:41,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:38:41,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:38:41,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:38:41,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:38:41,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (1/1) ... [2022-02-24 00:38:41,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:38:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:38:41,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:38:41,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:38:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:38:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:38:41,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:38:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-24 00:38:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-24 00:38:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:38:41,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-24 00:38:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:38:41,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:38:41,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:38:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:38:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:38:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:38:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-24 00:38:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:38:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:38:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:38:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:38:42,011 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:38:42,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:38:43,340 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:38:43,637 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-24 00:38:43,637 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-24 00:38:43,648 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:38:43,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:38:43,655 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:38:43,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:43 BoogieIcfgContainer [2022-02-24 00:38:43,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:38:43,657 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:38:43,657 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:38:43,658 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:38:43,661 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:43" (1/1) ... [2022-02-24 00:38:43,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:38:43 BasicIcfg [2022-02-24 00:38:43,722 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:38:43,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:38:43,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:38:43,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:38:43,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:38:41" (1/4) ... [2022-02-24 00:38:43,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f57a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:38:43, skipping insertion in model container [2022-02-24 00:38:43,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:38:41" (2/4) ... [2022-02-24 00:38:43,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f57a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:38:43, skipping insertion in model container [2022-02-24 00:38:43,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:38:43" (3/4) ... [2022-02-24 00:38:43,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f57a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:38:43, skipping insertion in model container [2022-02-24 00:38:43,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:38:43" (4/4) ... [2022-02-24 00:38:43,729 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cqvasr [2022-02-24 00:38:43,733 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:38:43,733 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:38:43,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:38:43,780 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:38:43,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:38:43,796 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) [2022-02-24 00:38:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-24 00:38:43,801 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:43,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:38:43,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:43,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:43,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-02-24 00:38:43,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:43,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773965546] [2022-02-24 00:38:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:38:44,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:44,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773965546] [2022-02-24 00:38:44,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773965546] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:44,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:44,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:44,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685391408] [2022-02-24 00:38:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:44,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:44,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:44,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:44,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:44,497 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) [2022-02-24 00:38:46,541 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 [] [2022-02-24 00:38:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:47,028 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-02-24 00:38:47,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:47,030 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 [2022-02-24 00:38:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:47,039 INFO L225 Difference]: With dead ends: 267 [2022-02-24 00:38:47,040 INFO L226 Difference]: Without dead ends: 122 [2022-02-24 00:38:47,044 INFO L932 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 [2022-02-24 00:38:47,053 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:38:47,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:38:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-24 00:38:47,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-24 00:38:47,105 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) [2022-02-24 00:38:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-24 00:38:47,111 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-24 00:38:47,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:47,111 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-24 00:38:47,112 INFO L471 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) [2022-02-24 00:38:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-24 00:38:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-24 00:38:47,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:47,113 INFO L514 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] [2022-02-24 00:38:47,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:38:47,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-02-24 00:38:47,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:47,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084319783] [2022-02-24 00:38:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:47,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:47,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:47,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084319783] [2022-02-24 00:38:47,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084319783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:47,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:47,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:38:47,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196115884] [2022-02-24 00:38:47,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:47,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:38:47,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:38:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:38:47,388 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) [2022-02-24 00:38:49,400 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 [] [2022-02-24 00:38:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:49,693 INFO L93 Difference]: Finished difference Result 326 states and 488 transitions. [2022-02-24 00:38:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:38:49,694 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 [2022-02-24 00:38:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:49,696 INFO L225 Difference]: With dead ends: 326 [2022-02-24 00:38:49,696 INFO L226 Difference]: Without dead ends: 221 [2022-02-24 00:38:49,697 INFO L932 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 [2022-02-24 00:38:49,697 INFO L933 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 [2022-02-24 00:38:49,698 INFO L934 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] [2022-02-24 00:38:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-24 00:38:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-02-24 00:38:49,721 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) [2022-02-24 00:38:49,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-02-24 00:38:49,724 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-02-24 00:38:49,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:49,724 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-02-24 00:38:49,725 INFO L471 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) [2022-02-24 00:38:49,725 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-02-24 00:38:49,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-24 00:38:49,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:49,730 INFO L514 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] [2022-02-24 00:38:49,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:38:49,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:49,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-02-24 00:38:49,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:49,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520250760] [2022-02-24 00:38:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:49,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:49,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520250760] [2022-02-24 00:38:49,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520250760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:49,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:49,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:49,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629021068] [2022-02-24 00:38:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:49,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:49,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:49,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:49,944 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) [2022-02-24 00:38:51,954 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 [] [2022-02-24 00:38:52,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:52,366 INFO L93 Difference]: Finished difference Result 362 states and 538 transitions. [2022-02-24 00:38:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:52,367 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 [2022-02-24 00:38:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:52,369 INFO L225 Difference]: With dead ends: 362 [2022-02-24 00:38:52,369 INFO L226 Difference]: Without dead ends: 257 [2022-02-24 00:38:52,370 INFO L932 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 [2022-02-24 00:38:52,370 INFO L933 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 [2022-02-24 00:38:52,371 INFO L934 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] [2022-02-24 00:38:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-24 00:38:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-02-24 00:38:52,382 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) [2022-02-24 00:38:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-02-24 00:38:52,383 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-02-24 00:38:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:52,383 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-02-24 00:38:52,384 INFO L471 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) [2022-02-24 00:38:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-02-24 00:38:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-24 00:38:52,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:52,386 INFO L514 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] [2022-02-24 00:38:52,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:38:52,386 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:52,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1707240826, now seen corresponding path program 2 times [2022-02-24 00:38:52,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:52,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120765740] [2022-02-24 00:38:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:52,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:52,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:52,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:52,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120765740] [2022-02-24 00:38:52,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120765740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:52,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:52,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:52,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71368648] [2022-02-24 00:38:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:52,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:52,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:52,622 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) [2022-02-24 00:38:54,633 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 [] [2022-02-24 00:38:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:55,067 INFO L93 Difference]: Finished difference Result 642 states and 963 transitions. [2022-02-24 00:38:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:55,068 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 [2022-02-24 00:38:55,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:55,070 INFO L225 Difference]: With dead ends: 642 [2022-02-24 00:38:55,070 INFO L226 Difference]: Without dead ends: 419 [2022-02-24 00:38:55,071 INFO L932 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 [2022-02-24 00:38:55,072 INFO L933 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 [2022-02-24 00:38:55,072 INFO L934 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] [2022-02-24 00:38:55,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-02-24 00:38:55,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 261. [2022-02-24 00:38:55,095 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) [2022-02-24 00:38:55,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-02-24 00:38:55,096 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 73 [2022-02-24 00:38:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:55,097 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-02-24 00:38:55,097 INFO L471 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) [2022-02-24 00:38:55,097 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-02-24 00:38:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-24 00:38:55,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:55,099 INFO L514 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] [2022-02-24 00:38:55,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:38:55,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:55,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2069356890, now seen corresponding path program 1 times [2022-02-24 00:38:55,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:55,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574532150] [2022-02-24 00:38:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:55,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:55,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574532150] [2022-02-24 00:38:55,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574532150] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:55,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:55,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:55,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869396308] [2022-02-24 00:38:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:55,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:55,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:55,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:55,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:55,293 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) [2022-02-24 00:38:57,303 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 [] [2022-02-24 00:38:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:38:57,744 INFO L93 Difference]: Finished difference Result 665 states and 992 transitions. [2022-02-24 00:38:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:38:57,747 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 [2022-02-24 00:38:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:38:57,750 INFO L225 Difference]: With dead ends: 665 [2022-02-24 00:38:57,750 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 00:38:57,751 INFO L932 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 [2022-02-24 00:38:57,751 INFO L933 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 [2022-02-24 00:38:57,752 INFO L934 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] [2022-02-24 00:38:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 00:38:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 263. [2022-02-24 00:38:57,761 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) [2022-02-24 00:38:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 387 transitions. [2022-02-24 00:38:57,763 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 387 transitions. Word has length 73 [2022-02-24 00:38:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:38:57,771 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 387 transitions. [2022-02-24 00:38:57,771 INFO L471 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) [2022-02-24 00:38:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 387 transitions. [2022-02-24 00:38:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-24 00:38:57,772 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:38:57,772 INFO L514 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] [2022-02-24 00:38:57,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:38:57,773 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:38:57,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:38:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash -841732619, now seen corresponding path program 1 times [2022-02-24 00:38:57,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:38:57,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159077883] [2022-02-24 00:38:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:38:57,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:38:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:38:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:38:57,990 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:38:57,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:38:57,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159077883] [2022-02-24 00:38:57,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159077883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:38:57,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:38:57,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:38:57,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867161098] [2022-02-24 00:38:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:38:57,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:38:57,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:38:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:38:57,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:38:57,995 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) [2022-02-24 00:39:00,011 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 [] [2022-02-24 00:39:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:00,439 INFO L93 Difference]: Finished difference Result 667 states and 990 transitions. [2022-02-24 00:39:00,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:00,440 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 [2022-02-24 00:39:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:00,442 INFO L225 Difference]: With dead ends: 667 [2022-02-24 00:39:00,442 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 00:39:00,443 INFO L932 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 [2022-02-24 00:39:00,443 INFO L933 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 [2022-02-24 00:39:00,443 INFO L934 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] [2022-02-24 00:39:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 00:39:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 265. [2022-02-24 00:39:00,457 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) [2022-02-24 00:39:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 388 transitions. [2022-02-24 00:39:00,458 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 388 transitions. Word has length 74 [2022-02-24 00:39:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:00,458 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 388 transitions. [2022-02-24 00:39:00,459 INFO L471 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) [2022-02-24 00:39:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 388 transitions. [2022-02-24 00:39:00,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-24 00:39:00,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:00,463 INFO L514 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] [2022-02-24 00:39:00,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:39:00,464 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:00,464 INFO L85 PathProgramCache]: Analyzing trace with hash -845929674, now seen corresponding path program 1 times [2022-02-24 00:39:00,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:00,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112756723] [2022-02-24 00:39:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:00,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:39:00,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:00,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112756723] [2022-02-24 00:39:00,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112756723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:00,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:00,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:00,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614033476] [2022-02-24 00:39:00,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:00,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:00,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:00,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:00,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:00,657 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) [2022-02-24 00:39:02,667 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 [] [2022-02-24 00:39:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:03,111 INFO L93 Difference]: Finished difference Result 669 states and 988 transitions. [2022-02-24 00:39:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:03,111 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 [2022-02-24 00:39:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:03,114 INFO L225 Difference]: With dead ends: 669 [2022-02-24 00:39:03,114 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 00:39:03,115 INFO L932 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 [2022-02-24 00:39:03,119 INFO L933 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 [2022-02-24 00:39:03,119 INFO L934 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] [2022-02-24 00:39:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 00:39:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 267. [2022-02-24 00:39:03,128 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) [2022-02-24 00:39:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 389 transitions. [2022-02-24 00:39:03,134 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 389 transitions. Word has length 75 [2022-02-24 00:39:03,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:03,135 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 389 transitions. [2022-02-24 00:39:03,136 INFO L471 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) [2022-02-24 00:39:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 389 transitions. [2022-02-24 00:39:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-24 00:39:03,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:03,137 INFO L514 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] [2022-02-24 00:39:03,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:39:03,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash -942089998, now seen corresponding path program 1 times [2022-02-24 00:39:03,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:03,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118731366] [2022-02-24 00:39:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:03,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:39:03,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:03,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118731366] [2022-02-24 00:39:03,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118731366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:03,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:03,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:03,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196595235] [2022-02-24 00:39:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:03,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:03,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:03,367 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) [2022-02-24 00:39:05,383 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 [] [2022-02-24 00:39:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:05,823 INFO L93 Difference]: Finished difference Result 671 states and 986 transitions. [2022-02-24 00:39:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:05,823 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 [2022-02-24 00:39:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:05,825 INFO L225 Difference]: With dead ends: 671 [2022-02-24 00:39:05,825 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 00:39:05,826 INFO L932 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 [2022-02-24 00:39:05,826 INFO L933 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 [2022-02-24 00:39:05,827 INFO L934 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] [2022-02-24 00:39:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 00:39:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 269. [2022-02-24 00:39:05,835 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) [2022-02-24 00:39:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 390 transitions. [2022-02-24 00:39:05,836 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 390 transitions. Word has length 76 [2022-02-24 00:39:05,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:05,836 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 390 transitions. [2022-02-24 00:39:05,836 INFO L471 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) [2022-02-24 00:39:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2022-02-24 00:39:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 00:39:05,837 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:05,837 INFO L514 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] [2022-02-24 00:39:05,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:39:05,838 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1179030540, now seen corresponding path program 1 times [2022-02-24 00:39:05,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:05,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458164584] [2022-02-24 00:39:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-24 00:39:06,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:06,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458164584] [2022-02-24 00:39:06,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458164584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:06,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:06,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:06,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438925383] [2022-02-24 00:39:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:06,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:06,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:06,030 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) [2022-02-24 00:39:08,053 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 [] [2022-02-24 00:39:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:08,518 INFO L93 Difference]: Finished difference Result 542 states and 794 transitions. [2022-02-24 00:39:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:08,519 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 [2022-02-24 00:39:08,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:08,521 INFO L225 Difference]: With dead ends: 542 [2022-02-24 00:39:08,521 INFO L226 Difference]: Without dead ends: 404 [2022-02-24 00:39:08,522 INFO L932 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 [2022-02-24 00:39:08,522 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:08,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:08,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-24 00:39:08,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-02-24 00:39:08,532 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) [2022-02-24 00:39:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 585 transitions. [2022-02-24 00:39:08,533 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 585 transitions. Word has length 77 [2022-02-24 00:39:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:08,533 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 585 transitions. [2022-02-24 00:39:08,534 INFO L471 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) [2022-02-24 00:39:08,534 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 585 transitions. [2022-02-24 00:39:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 00:39:08,535 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:08,535 INFO L514 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] [2022-02-24 00:39:08,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:39:08,535 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1210050347, now seen corresponding path program 1 times [2022-02-24 00:39:08,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:08,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8524933] [2022-02-24 00:39:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:39:08,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:08,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8524933] [2022-02-24 00:39:08,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8524933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:08,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:08,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:08,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446973997] [2022-02-24 00:39:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:08,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:08,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:08,718 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) [2022-02-24 00:39:10,730 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 [] [2022-02-24 00:39:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:11,007 INFO L93 Difference]: Finished difference Result 702 states and 1019 transitions. [2022-02-24 00:39:11,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:11,008 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 [2022-02-24 00:39:11,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:11,010 INFO L225 Difference]: With dead ends: 702 [2022-02-24 00:39:11,010 INFO L226 Difference]: Without dead ends: 429 [2022-02-24 00:39:11,011 INFO L932 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 [2022-02-24 00:39:11,011 INFO L933 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:11,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-02-24 00:39:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-02-24 00:39:11,021 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) [2022-02-24 00:39:11,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 618 transitions. [2022-02-24 00:39:11,023 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 618 transitions. Word has length 77 [2022-02-24 00:39:11,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:11,023 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 618 transitions. [2022-02-24 00:39:11,023 INFO L471 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) [2022-02-24 00:39:11,023 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 618 transitions. [2022-02-24 00:39:11,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-24 00:39:11,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:11,025 INFO L514 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] [2022-02-24 00:39:11,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:39:11,025 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:11,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:11,025 INFO L85 PathProgramCache]: Analyzing trace with hash 464067919, now seen corresponding path program 1 times [2022-02-24 00:39:11,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:11,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092898536] [2022-02-24 00:39:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:11,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-24 00:39:11,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:11,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092898536] [2022-02-24 00:39:11,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092898536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:11,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:11,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:11,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070549697] [2022-02-24 00:39:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:11,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:11,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:11,222 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) [2022-02-24 00:39:13,235 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 [] [2022-02-24 00:39:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:13,688 INFO L93 Difference]: Finished difference Result 861 states and 1249 transitions. [2022-02-24 00:39:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:13,689 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 [2022-02-24 00:39:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:13,691 INFO L225 Difference]: With dead ends: 861 [2022-02-24 00:39:13,692 INFO L226 Difference]: Without dead ends: 563 [2022-02-24 00:39:13,692 INFO L932 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 [2022-02-24 00:39:13,693 INFO L933 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 [2022-02-24 00:39:13,693 INFO L934 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] [2022-02-24 00:39:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-02-24 00:39:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-02-24 00:39:13,705 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) [2022-02-24 00:39:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 812 transitions. [2022-02-24 00:39:13,707 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 812 transitions. Word has length 97 [2022-02-24 00:39:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:13,707 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 812 transitions. [2022-02-24 00:39:13,707 INFO L471 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) [2022-02-24 00:39:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 812 transitions. [2022-02-24 00:39:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:39:13,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:13,709 INFO L514 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] [2022-02-24 00:39:13,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:39:13,709 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:13,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-02-24 00:39:13,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:13,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75547218] [2022-02-24 00:39:13,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:39:13,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:13,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75547218] [2022-02-24 00:39:13,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75547218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:13,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:13,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:13,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132907021] [2022-02-24 00:39:13,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:13,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:13,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:13,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:13,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:13,877 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) [2022-02-24 00:39:15,887 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 [] [2022-02-24 00:39:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:16,383 INFO L93 Difference]: Finished difference Result 1111 states and 1611 transitions. [2022-02-24 00:39:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:16,383 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 [2022-02-24 00:39:16,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:16,386 INFO L225 Difference]: With dead ends: 1111 [2022-02-24 00:39:16,386 INFO L226 Difference]: Without dead ends: 679 [2022-02-24 00:39:16,388 INFO L932 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 [2022-02-24 00:39:16,388 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:16,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-02-24 00:39:16,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-02-24 00:39:16,404 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) [2022-02-24 00:39:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 980 transitions. [2022-02-24 00:39:16,407 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 980 transitions. Word has length 118 [2022-02-24 00:39:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:16,407 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 980 transitions. [2022-02-24 00:39:16,407 INFO L471 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) [2022-02-24 00:39:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 980 transitions. [2022-02-24 00:39:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-02-24 00:39:16,409 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:16,410 INFO L514 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] [2022-02-24 00:39:16,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:39:16,410 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:16,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash -65774092, now seen corresponding path program 1 times [2022-02-24 00:39:16,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:16,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151421085] [2022-02-24 00:39:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-24 00:39:16,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:16,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151421085] [2022-02-24 00:39:16,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151421085] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:16,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:16,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:16,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327959619] [2022-02-24 00:39:16,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:16,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:16,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:16,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:16,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:16,640 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) [2022-02-24 00:39:18,651 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 [] [2022-02-24 00:39:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:19,099 INFO L93 Difference]: Finished difference Result 1796 states and 2594 transitions. [2022-02-24 00:39:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:19,099 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 [2022-02-24 00:39:19,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:19,103 INFO L225 Difference]: With dead ends: 1796 [2022-02-24 00:39:19,104 INFO L226 Difference]: Without dead ends: 1133 [2022-02-24 00:39:19,105 INFO L932 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 [2022-02-24 00:39:19,106 INFO L933 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 [2022-02-24 00:39:19,106 INFO L934 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] [2022-02-24 00:39:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-02-24 00:39:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 784. [2022-02-24 00:39:19,126 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) [2022-02-24 00:39:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1130 transitions. [2022-02-24 00:39:19,128 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1130 transitions. Word has length 152 [2022-02-24 00:39:19,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:19,128 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1130 transitions. [2022-02-24 00:39:19,129 INFO L471 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) [2022-02-24 00:39:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1130 transitions. [2022-02-24 00:39:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-02-24 00:39:19,131 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:19,131 INFO L514 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] [2022-02-24 00:39:19,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:39:19,131 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash 449746357, now seen corresponding path program 1 times [2022-02-24 00:39:19,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:19,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90179520] [2022-02-24 00:39:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-24 00:39:19,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:19,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90179520] [2022-02-24 00:39:19,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90179520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:19,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:19,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:19,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336532717] [2022-02-24 00:39:19,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:19,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:19,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:19,347 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) [2022-02-24 00:39:21,363 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 [] [2022-02-24 00:39:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:21,894 INFO L93 Difference]: Finished difference Result 1892 states and 2739 transitions. [2022-02-24 00:39:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:21,895 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 [2022-02-24 00:39:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:21,900 INFO L225 Difference]: With dead ends: 1892 [2022-02-24 00:39:21,900 INFO L226 Difference]: Without dead ends: 1258 [2022-02-24 00:39:21,901 INFO L932 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 [2022-02-24 00:39:21,901 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 111 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:21,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 502 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-02-24 00:39:21,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 869. [2022-02-24 00:39:21,926 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) [2022-02-24 00:39:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1236 transitions. [2022-02-24 00:39:21,929 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1236 transitions. Word has length 152 [2022-02-24 00:39:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:21,929 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1236 transitions. [2022-02-24 00:39:21,929 INFO L471 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) [2022-02-24 00:39:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1236 transitions. [2022-02-24 00:39:21,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-24 00:39:21,932 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:21,932 INFO L514 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] [2022-02-24 00:39:21,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:39:21,932 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash 52767334, now seen corresponding path program 1 times [2022-02-24 00:39:21,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:21,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286393632] [2022-02-24 00:39:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:21,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-24 00:39:22,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:22,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286393632] [2022-02-24 00:39:22,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286393632] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:22,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:22,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:22,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552602014] [2022-02-24 00:39:22,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:22,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:22,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:22,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:22,119 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) [2022-02-24 00:39:24,136 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 [] [2022-02-24 00:39:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:24,644 INFO L93 Difference]: Finished difference Result 1939 states and 2786 transitions. [2022-02-24 00:39:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:24,645 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 [2022-02-24 00:39:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:24,649 INFO L225 Difference]: With dead ends: 1939 [2022-02-24 00:39:24,649 INFO L226 Difference]: Without dead ends: 1237 [2022-02-24 00:39:24,652 INFO L932 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 [2022-02-24 00:39:24,653 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 105 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:24,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 498 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-02-24 00:39:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 876. [2022-02-24 00:39:24,675 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) [2022-02-24 00:39:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1239 transitions. [2022-02-24 00:39:24,678 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1239 transitions. Word has length 153 [2022-02-24 00:39:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:24,678 INFO L470 AbstractCegarLoop]: Abstraction has 876 states and 1239 transitions. [2022-02-24 00:39:24,679 INFO L471 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) [2022-02-24 00:39:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1239 transitions. [2022-02-24 00:39:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-24 00:39:24,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:24,682 INFO L514 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] [2022-02-24 00:39:24,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:39:24,683 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:24,683 INFO L85 PathProgramCache]: Analyzing trace with hash -316129618, now seen corresponding path program 1 times [2022-02-24 00:39:24,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:24,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482642098] [2022-02-24 00:39:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:24,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-24 00:39:24,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:24,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482642098] [2022-02-24 00:39:24,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482642098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:24,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:24,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:24,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265477494] [2022-02-24 00:39:24,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:24,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:24,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:24,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:24,906 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) [2022-02-24 00:39:26,917 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 [] [2022-02-24 00:39:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:27,255 INFO L93 Difference]: Finished difference Result 1895 states and 2672 transitions. [2022-02-24 00:39:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:27,256 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 [2022-02-24 00:39:27,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:27,259 INFO L225 Difference]: With dead ends: 1895 [2022-02-24 00:39:27,259 INFO L226 Difference]: Without dead ends: 1035 [2022-02-24 00:39:27,261 INFO L932 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 [2022-02-24 00:39:27,261 INFO L933 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 [2022-02-24 00:39:27,261 INFO L934 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] [2022-02-24 00:39:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-02-24 00:39:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 972. [2022-02-24 00:39:27,283 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) [2022-02-24 00:39:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1375 transitions. [2022-02-24 00:39:27,286 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1375 transitions. Word has length 188 [2022-02-24 00:39:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:27,286 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1375 transitions. [2022-02-24 00:39:27,286 INFO L471 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) [2022-02-24 00:39:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1375 transitions. [2022-02-24 00:39:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-24 00:39:27,289 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:27,289 INFO L514 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] [2022-02-24 00:39:27,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:39:27,289 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:27,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash -55743268, now seen corresponding path program 2 times [2022-02-24 00:39:27,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:27,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787212801] [2022-02-24 00:39:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:27,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 366 proven. 1 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-02-24 00:39:27,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:27,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787212801] [2022-02-24 00:39:27,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787212801] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:39:27,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713110991] [2022-02-24 00:39:27,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-24 00:39:27,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:39:27,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:39:27,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:39:27,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:40:39,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-24 00:40:39,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-24 00:40:39,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:40:39,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:40:39,414 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-24 00:40:39,415 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 [2022-02-24 00:40:39,437 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 [2022-02-24 00:40:39,443 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 [2022-02-24 00:40:39,453 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 [2022-02-24 00:40:39,637 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 [2022-02-24 00:40:39,804 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-24 00:40:39,819 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 [2022-02-24 00:40:39,868 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:40:39,868 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 [2022-02-24 00:40:39,981 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:40:39,981 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 [2022-02-24 00:40:40,028 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 [2022-02-24 00:40:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 328 proven. 40 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-02-24 00:40:40,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:40:40,259 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 [2022-02-24 00:40:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 334 proven. 9 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-02-24 00:40:40,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713110991] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:40:40,567 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:40:40,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2022-02-24 00:40:40,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816622696] [2022-02-24 00:40:40,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:40:40,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 00:40:40,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:40,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 00:40:40,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-24 00:40:40,568 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) [2022-02-24 00:40:42,583 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 [] [2022-02-24 00:40:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:45,263 INFO L93 Difference]: Finished difference Result 3961 states and 5655 transitions. [2022-02-24 00:40:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-24 00:40:45,264 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 [2022-02-24 00:40:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:45,273 INFO L225 Difference]: With dead ends: 3961 [2022-02-24 00:40:45,273 INFO L226 Difference]: Without dead ends: 3005 [2022-02-24 00:40:45,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 00:40:45,276 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 867 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 271 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:45,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 2341 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2362 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 00:40:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2022-02-24 00:40:45,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1701. [2022-02-24 00:40:45,331 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) [2022-02-24 00:40:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2436 transitions. [2022-02-24 00:40:45,335 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2436 transitions. Word has length 206 [2022-02-24 00:40:45,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:45,336 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 2436 transitions. [2022-02-24 00:40:45,336 INFO L471 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) [2022-02-24 00:40:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2436 transitions. [2022-02-24 00:40:45,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-24 00:40:45,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:45,340 INFO L514 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] [2022-02-24 00:40:45,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-24 00:40:45,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-24 00:40:45,564 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:45,564 INFO L85 PathProgramCache]: Analyzing trace with hash 85822156, now seen corresponding path program 1 times [2022-02-24 00:40:45,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:45,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681241684] [2022-02-24 00:40:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-02-24 00:40:45,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:45,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681241684] [2022-02-24 00:40:45,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681241684] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:45,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:45,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:45,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103603649] [2022-02-24 00:40:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:45,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:45,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:45,778 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) [2022-02-24 00:40:47,788 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 [] [2022-02-24 00:40:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:48,219 INFO L93 Difference]: Finished difference Result 3942 states and 5650 transitions. [2022-02-24 00:40:48,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:48,220 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 [2022-02-24 00:40:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:48,227 INFO L225 Difference]: With dead ends: 3942 [2022-02-24 00:40:48,227 INFO L226 Difference]: Without dead ends: 2257 [2022-02-24 00:40:48,230 INFO L932 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 [2022-02-24 00:40:48,231 INFO L933 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 [2022-02-24 00:40:48,231 INFO L934 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] [2022-02-24 00:40:48,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-02-24 00:40:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1701. [2022-02-24 00:40:48,280 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) [2022-02-24 00:40:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2413 transitions. [2022-02-24 00:40:48,283 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2413 transitions. Word has length 208 [2022-02-24 00:40:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:48,283 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 2413 transitions. [2022-02-24 00:40:48,283 INFO L471 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) [2022-02-24 00:40:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2413 transitions. [2022-02-24 00:40:48,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-24 00:40:48,287 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:48,287 INFO L514 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] [2022-02-24 00:40:48,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:40:48,287 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:48,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2059619179, now seen corresponding path program 1 times [2022-02-24 00:40:48,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:48,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549431314] [2022-02-24 00:40:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:48,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-24 00:40:48,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:48,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549431314] [2022-02-24 00:40:48,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549431314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:48,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:48,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:48,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239106126] [2022-02-24 00:40:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:48,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:48,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:48,498 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) [2022-02-24 00:40:50,508 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 [] [2022-02-24 00:40:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:50,813 INFO L93 Difference]: Finished difference Result 3436 states and 4859 transitions. [2022-02-24 00:40:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:50,814 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 [2022-02-24 00:40:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:50,819 INFO L225 Difference]: With dead ends: 3436 [2022-02-24 00:40:50,820 INFO L226 Difference]: Without dead ends: 1751 [2022-02-24 00:40:50,822 INFO L932 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 [2022-02-24 00:40:50,823 INFO L933 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 [2022-02-24 00:40:50,823 INFO L934 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] [2022-02-24 00:40:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-02-24 00:40:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1701. [2022-02-24 00:40:50,866 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) [2022-02-24 00:40:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2405 transitions. [2022-02-24 00:40:50,869 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2405 transitions. Word has length 208 [2022-02-24 00:40:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:50,869 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 2405 transitions. [2022-02-24 00:40:50,869 INFO L471 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) [2022-02-24 00:40:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2405 transitions. [2022-02-24 00:40:50,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-02-24 00:40:50,873 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:50,873 INFO L514 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] [2022-02-24 00:40:50,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:40:50,874 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:50,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash 76545642, now seen corresponding path program 1 times [2022-02-24 00:40:50,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:50,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198616540] [2022-02-24 00:40:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 00:40:51,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:51,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198616540] [2022-02-24 00:40:51,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198616540] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:51,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:51,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:51,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34120848] [2022-02-24 00:40:51,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:51,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:51,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:51,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:51,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:51,113 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) [2022-02-24 00:40:53,123 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 [] [2022-02-24 00:40:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:53,543 INFO L93 Difference]: Finished difference Result 4202 states and 5928 transitions. [2022-02-24 00:40:53,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:53,544 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 [2022-02-24 00:40:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:53,551 INFO L225 Difference]: With dead ends: 4202 [2022-02-24 00:40:53,551 INFO L226 Difference]: Without dead ends: 2517 [2022-02-24 00:40:53,554 INFO L932 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 [2022-02-24 00:40:53,555 INFO L933 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 [2022-02-24 00:40:53,555 INFO L934 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] [2022-02-24 00:40:53,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-02-24 00:40:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2081. [2022-02-24 00:40:53,606 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) [2022-02-24 00:40:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2975 transitions. [2022-02-24 00:40:53,609 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2975 transitions. Word has length 211 [2022-02-24 00:40:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:53,610 INFO L470 AbstractCegarLoop]: Abstraction has 2081 states and 2975 transitions. [2022-02-24 00:40:53,610 INFO L471 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) [2022-02-24 00:40:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2975 transitions. [2022-02-24 00:40:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-24 00:40:53,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:53,615 INFO L514 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] [2022-02-24 00:40:53,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:40:53,615 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash -615376590, now seen corresponding path program 1 times [2022-02-24 00:40:53,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:53,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451955972] [2022-02-24 00:40:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 00:40:53,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:53,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451955972] [2022-02-24 00:40:53,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451955972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:53,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:53,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:53,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667218947] [2022-02-24 00:40:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:53,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:53,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:53,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:53,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:53,821 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) [2022-02-24 00:40:55,830 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 [] [2022-02-24 00:40:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:56,220 INFO L93 Difference]: Finished difference Result 4702 states and 6728 transitions. [2022-02-24 00:40:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:56,221 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 [2022-02-24 00:40:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:56,228 INFO L225 Difference]: With dead ends: 4702 [2022-02-24 00:40:56,228 INFO L226 Difference]: Without dead ends: 2637 [2022-02-24 00:40:56,231 INFO L932 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 [2022-02-24 00:40:56,232 INFO L933 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 [2022-02-24 00:40:56,232 INFO L934 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] [2022-02-24 00:40:56,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-02-24 00:40:56,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2211. [2022-02-24 00:40:56,309 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) [2022-02-24 00:40:56,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3225 transitions. [2022-02-24 00:40:56,313 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3225 transitions. Word has length 212 [2022-02-24 00:40:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:56,313 INFO L470 AbstractCegarLoop]: Abstraction has 2211 states and 3225 transitions. [2022-02-24 00:40:56,313 INFO L471 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) [2022-02-24 00:40:56,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3225 transitions. [2022-02-24 00:40:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-24 00:40:56,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:56,317 INFO L514 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] [2022-02-24 00:40:56,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:40:56,317 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:56,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1973118987, now seen corresponding path program 1 times [2022-02-24 00:40:56,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:56,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727338804] [2022-02-24 00:40:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:56,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:56,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 00:40:56,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:56,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727338804] [2022-02-24 00:40:56,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727338804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:56,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:56,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:56,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057099132] [2022-02-24 00:40:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:56,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:56,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:56,520 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) [2022-02-24 00:40:58,530 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 [] [2022-02-24 00:40:58,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:58,939 INFO L93 Difference]: Finished difference Result 4832 states and 6968 transitions. [2022-02-24 00:40:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:58,941 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 [2022-02-24 00:40:58,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:58,949 INFO L225 Difference]: With dead ends: 4832 [2022-02-24 00:40:58,949 INFO L226 Difference]: Without dead ends: 2637 [2022-02-24 00:40:58,952 INFO L932 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 [2022-02-24 00:40:58,952 INFO L933 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:58,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-02-24 00:40:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2221. [2022-02-24 00:40:59,009 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) [2022-02-24 00:40:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3235 transitions. [2022-02-24 00:40:59,013 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3235 transitions. Word has length 212 [2022-02-24 00:40:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:59,013 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3235 transitions. [2022-02-24 00:40:59,013 INFO L471 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) [2022-02-24 00:40:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3235 transitions. [2022-02-24 00:40:59,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-24 00:40:59,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:59,017 INFO L514 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] [2022-02-24 00:40:59,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:40:59,017 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:59,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:59,018 INFO L85 PathProgramCache]: Analyzing trace with hash 714270050, now seen corresponding path program 1 times [2022-02-24 00:40:59,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:59,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952946014] [2022-02-24 00:40:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:59,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 00:40:59,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:59,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952946014] [2022-02-24 00:40:59,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952946014] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:59,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:59,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:59,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009182242] [2022-02-24 00:40:59,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:59,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:59,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:59,239 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) [2022-02-24 00:41:01,251 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 [] [2022-02-24 00:41:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:01,645 INFO L93 Difference]: Finished difference Result 4832 states and 6958 transitions. [2022-02-24 00:41:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:01,646 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 [2022-02-24 00:41:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:01,654 INFO L225 Difference]: With dead ends: 4832 [2022-02-24 00:41:01,654 INFO L226 Difference]: Without dead ends: 2627 [2022-02-24 00:41:01,657 INFO L932 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 [2022-02-24 00:41:01,658 INFO L933 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 [2022-02-24 00:41:01,658 INFO L934 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] [2022-02-24 00:41:01,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-02-24 00:41:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2231. [2022-02-24 00:41:01,718 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) [2022-02-24 00:41:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3245 transitions. [2022-02-24 00:41:01,721 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3245 transitions. Word has length 213 [2022-02-24 00:41:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:01,721 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 3245 transitions. [2022-02-24 00:41:01,722 INFO L471 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) [2022-02-24 00:41:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3245 transitions. [2022-02-24 00:41:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 00:41:01,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:01,726 INFO L514 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] [2022-02-24 00:41:01,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:41:01,726 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:01,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1938410075, now seen corresponding path program 1 times [2022-02-24 00:41:01,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:01,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193873] [2022-02-24 00:41:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:01,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 00:41:01,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:01,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193873] [2022-02-24 00:41:01,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:01,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:01,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:01,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854566296] [2022-02-24 00:41:01,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:01,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:01,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:01,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:01,971 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) [2022-02-24 00:41:03,982 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 [] [2022-02-24 00:41:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:04,331 INFO L93 Difference]: Finished difference Result 4844 states and 6993 transitions. [2022-02-24 00:41:04,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:04,331 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 [2022-02-24 00:41:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:04,337 INFO L225 Difference]: With dead ends: 4844 [2022-02-24 00:41:04,337 INFO L226 Difference]: Without dead ends: 2629 [2022-02-24 00:41:04,340 INFO L932 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 [2022-02-24 00:41:04,341 INFO L933 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 [2022-02-24 00:41:04,341 INFO L934 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] [2022-02-24 00:41:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-02-24 00:41:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2491. [2022-02-24 00:41:04,399 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) [2022-02-24 00:41:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3595 transitions. [2022-02-24 00:41:04,403 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3595 transitions. Word has length 214 [2022-02-24 00:41:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:04,403 INFO L470 AbstractCegarLoop]: Abstraction has 2491 states and 3595 transitions. [2022-02-24 00:41:04,403 INFO L471 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) [2022-02-24 00:41:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3595 transitions. [2022-02-24 00:41:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-02-24 00:41:04,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:04,408 INFO L514 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] [2022-02-24 00:41:04,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:41:04,408 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1477522265, now seen corresponding path program 1 times [2022-02-24 00:41:04,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:04,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944243026] [2022-02-24 00:41:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-02-24 00:41:04,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:04,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944243026] [2022-02-24 00:41:04,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944243026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:04,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:04,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:04,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174749694] [2022-02-24 00:41:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:04,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:04,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:04,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:04,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:04,673 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) [2022-02-24 00:41:06,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:07,026 INFO L93 Difference]: Finished difference Result 4805 states and 6884 transitions. [2022-02-24 00:41:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:07,027 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 [2022-02-24 00:41:07,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:07,032 INFO L225 Difference]: With dead ends: 4805 [2022-02-24 00:41:07,033 INFO L226 Difference]: Without dead ends: 2330 [2022-02-24 00:41:07,036 INFO L932 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 [2022-02-24 00:41:07,037 INFO L933 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 [2022-02-24 00:41:07,037 INFO L934 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] [2022-02-24 00:41:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-02-24 00:41:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2264. [2022-02-24 00:41:07,090 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) [2022-02-24 00:41:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3221 transitions. [2022-02-24 00:41:07,094 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3221 transitions. Word has length 233 [2022-02-24 00:41:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:07,094 INFO L470 AbstractCegarLoop]: Abstraction has 2264 states and 3221 transitions. [2022-02-24 00:41:07,095 INFO L471 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) [2022-02-24 00:41:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3221 transitions. [2022-02-24 00:41:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-24 00:41:07,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:07,099 INFO L514 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] [2022-02-24 00:41:07,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:41:07,100 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1792387938, now seen corresponding path program 1 times [2022-02-24 00:41:07,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:07,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979823116] [2022-02-24 00:41:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:07,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-02-24 00:41:07,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:07,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979823116] [2022-02-24 00:41:07,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979823116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:07,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:07,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:07,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098282576] [2022-02-24 00:41:07,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:07,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:07,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:07,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:07,322 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) [2022-02-24 00:41:09,332 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 [] [2022-02-24 00:41:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:09,696 INFO L93 Difference]: Finished difference Result 4876 states and 6903 transitions. [2022-02-24 00:41:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:09,696 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 [2022-02-24 00:41:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:09,700 INFO L225 Difference]: With dead ends: 4876 [2022-02-24 00:41:09,700 INFO L226 Difference]: Without dead ends: 2628 [2022-02-24 00:41:09,703 INFO L932 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 [2022-02-24 00:41:09,704 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-02-24 00:41:09,704 INFO L934 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] [2022-02-24 00:41:09,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2022-02-24 00:41:09,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2496. [2022-02-24 00:41:09,759 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) [2022-02-24 00:41:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3541 transitions. [2022-02-24 00:41:09,763 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3541 transitions. Word has length 239 [2022-02-24 00:41:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:09,763 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 3541 transitions. [2022-02-24 00:41:09,763 INFO L471 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) [2022-02-24 00:41:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3541 transitions. [2022-02-24 00:41:09,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-24 00:41:09,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:09,768 INFO L514 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] [2022-02-24 00:41:09,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:41:09,768 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash 839186305, now seen corresponding path program 1 times [2022-02-24 00:41:09,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:09,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443283090] [2022-02-24 00:41:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-02-24 00:41:10,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:10,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443283090] [2022-02-24 00:41:10,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443283090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:10,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:10,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:10,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342305443] [2022-02-24 00:41:10,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:10,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:10,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:10,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:10,003 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) [2022-02-24 00:41:12,014 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 [] [2022-02-24 00:41:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:12,394 INFO L93 Difference]: Finished difference Result 5388 states and 7631 transitions. [2022-02-24 00:41:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:12,395 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 [2022-02-24 00:41:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:12,400 INFO L225 Difference]: With dead ends: 5388 [2022-02-24 00:41:12,400 INFO L226 Difference]: Without dead ends: 2908 [2022-02-24 00:41:12,426 INFO L932 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 [2022-02-24 00:41:12,427 INFO L933 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 [2022-02-24 00:41:12,427 INFO L934 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] [2022-02-24 00:41:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2022-02-24 00:41:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2752. [2022-02-24 00:41:12,483 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) [2022-02-24 00:41:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3917 transitions. [2022-02-24 00:41:12,487 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3917 transitions. Word has length 239 [2022-02-24 00:41:12,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:12,487 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 3917 transitions. [2022-02-24 00:41:12,488 INFO L471 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) [2022-02-24 00:41:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3917 transitions. [2022-02-24 00:41:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-24 00:41:12,494 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:12,494 INFO L514 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] [2022-02-24 00:41:12,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:41:12,494 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:12,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash 534238815, now seen corresponding path program 1 times [2022-02-24 00:41:12,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:12,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790442240] [2022-02-24 00:41:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:12,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:12,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790442240] [2022-02-24 00:41:12,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790442240] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:12,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:12,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:12,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416856174] [2022-02-24 00:41:12,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:12,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:12,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:12,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:12,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:12,740 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) [2022-02-24 00:41:14,749 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 [] [2022-02-24 00:41:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:15,154 INFO L93 Difference]: Finished difference Result 5753 states and 8185 transitions. [2022-02-24 00:41:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:15,155 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 [2022-02-24 00:41:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:15,159 INFO L225 Difference]: With dead ends: 5753 [2022-02-24 00:41:15,159 INFO L226 Difference]: Without dead ends: 3017 [2022-02-24 00:41:15,163 INFO L932 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 [2022-02-24 00:41:15,163 INFO L933 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, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:15,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 512 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-02-24 00:41:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2852. [2022-02-24 00:41:15,233 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) [2022-02-24 00:41:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4049 transitions. [2022-02-24 00:41:15,236 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4049 transitions. Word has length 267 [2022-02-24 00:41:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:15,236 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 4049 transitions. [2022-02-24 00:41:15,236 INFO L471 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) [2022-02-24 00:41:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4049 transitions. [2022-02-24 00:41:15,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-24 00:41:15,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:15,241 INFO L514 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] [2022-02-24 00:41:15,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:41:15,242 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:15,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:15,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1542970528, now seen corresponding path program 1 times [2022-02-24 00:41:15,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:15,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455010294] [2022-02-24 00:41:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:15,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:15,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:15,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455010294] [2022-02-24 00:41:15,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455010294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:15,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:15,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:15,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130536048] [2022-02-24 00:41:15,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:15,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:15,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:15,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:15,505 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) [2022-02-24 00:41:17,516 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 [] [2022-02-24 00:41:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:17,825 INFO L93 Difference]: Finished difference Result 5709 states and 8104 transitions. [2022-02-24 00:41:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:17,826 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 [2022-02-24 00:41:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:17,830 INFO L225 Difference]: With dead ends: 5709 [2022-02-24 00:41:17,830 INFO L226 Difference]: Without dead ends: 2873 [2022-02-24 00:41:17,834 INFO L932 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 [2022-02-24 00:41:17,835 INFO L933 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 [2022-02-24 00:41:17,835 INFO L934 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] [2022-02-24 00:41:17,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-02-24 00:41:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2852. [2022-02-24 00:41:17,916 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) [2022-02-24 00:41:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4045 transitions. [2022-02-24 00:41:17,919 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4045 transitions. Word has length 267 [2022-02-24 00:41:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:17,919 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 4045 transitions. [2022-02-24 00:41:17,919 INFO L471 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) [2022-02-24 00:41:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4045 transitions. [2022-02-24 00:41:17,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-02-24 00:41:17,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:17,924 INFO L514 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] [2022-02-24 00:41:17,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:41:17,924 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:17,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash 717723451, now seen corresponding path program 1 times [2022-02-24 00:41:17,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:17,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110173002] [2022-02-24 00:41:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:18,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:18,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110173002] [2022-02-24 00:41:18,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110173002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:18,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:18,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:18,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843855574] [2022-02-24 00:41:18,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:18,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:18,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:18,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:18,169 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) [2022-02-24 00:41:20,178 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 [] [2022-02-24 00:41:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:20,598 INFO L93 Difference]: Finished difference Result 5853 states and 8305 transitions. [2022-02-24 00:41:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:20,599 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 [2022-02-24 00:41:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:20,604 INFO L225 Difference]: With dead ends: 5853 [2022-02-24 00:41:20,604 INFO L226 Difference]: Without dead ends: 3017 [2022-02-24 00:41:20,610 INFO L932 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 [2022-02-24 00:41:20,610 INFO L933 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 [2022-02-24 00:41:20,611 INFO L934 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] [2022-02-24 00:41:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-02-24 00:41:20,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2852. [2022-02-24 00:41:20,703 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) [2022-02-24 00:41:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4041 transitions. [2022-02-24 00:41:20,706 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4041 transitions. Word has length 287 [2022-02-24 00:41:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:20,707 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 4041 transitions. [2022-02-24 00:41:20,707 INFO L471 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) [2022-02-24 00:41:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4041 transitions. [2022-02-24 00:41:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-02-24 00:41:20,711 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:20,711 INFO L514 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] [2022-02-24 00:41:20,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:41:20,711 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:20,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2118539755, now seen corresponding path program 1 times [2022-02-24 00:41:20,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:20,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325669428] [2022-02-24 00:41:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:20,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:20,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:20,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:20,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325669428] [2022-02-24 00:41:20,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325669428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:20,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:20,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:20,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913782784] [2022-02-24 00:41:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:20,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:20,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:20,974 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) [2022-02-24 00:41:22,985 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 [] [2022-02-24 00:41:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:23,379 INFO L93 Difference]: Finished difference Result 5841 states and 8284 transitions. [2022-02-24 00:41:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:23,380 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 [2022-02-24 00:41:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:23,383 INFO L225 Difference]: With dead ends: 5841 [2022-02-24 00:41:23,383 INFO L226 Difference]: Without dead ends: 3005 [2022-02-24 00:41:23,385 INFO L932 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 [2022-02-24 00:41:23,386 INFO L933 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 [2022-02-24 00:41:23,386 INFO L934 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] [2022-02-24 00:41:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2022-02-24 00:41:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2852. [2022-02-24 00:41:23,474 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) [2022-02-24 00:41:23,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4037 transitions. [2022-02-24 00:41:23,477 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4037 transitions. Word has length 288 [2022-02-24 00:41:23,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:23,477 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 4037 transitions. [2022-02-24 00:41:23,477 INFO L471 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) [2022-02-24 00:41:23,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4037 transitions. [2022-02-24 00:41:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-02-24 00:41:23,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:23,482 INFO L514 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] [2022-02-24 00:41:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:41:23,482 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:23,482 INFO L85 PathProgramCache]: Analyzing trace with hash 969411152, now seen corresponding path program 1 times [2022-02-24 00:41:23,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:23,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494360398] [2022-02-24 00:41:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:23,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:23,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494360398] [2022-02-24 00:41:23,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494360398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:23,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:23,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:23,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730415888] [2022-02-24 00:41:23,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:23,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:23,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:23,739 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) [2022-02-24 00:41:25,749 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 [] [2022-02-24 00:41:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:26,130 INFO L93 Difference]: Finished difference Result 6007 states and 8448 transitions. [2022-02-24 00:41:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:26,130 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 [2022-02-24 00:41:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:26,133 INFO L225 Difference]: With dead ends: 6007 [2022-02-24 00:41:26,133 INFO L226 Difference]: Without dead ends: 3171 [2022-02-24 00:41:26,136 INFO L932 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 [2022-02-24 00:41:26,136 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 97 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:26,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 288 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:41:26,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-02-24 00:41:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2852. [2022-02-24 00:41:26,235 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) [2022-02-24 00:41:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 4005 transitions. [2022-02-24 00:41:26,239 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 4005 transitions. Word has length 292 [2022-02-24 00:41:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:26,239 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 4005 transitions. [2022-02-24 00:41:26,239 INFO L471 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) [2022-02-24 00:41:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 4005 transitions. [2022-02-24 00:41:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-02-24 00:41:26,243 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:26,243 INFO L514 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] [2022-02-24 00:41:26,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:41:26,244 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:26,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1619509744, now seen corresponding path program 1 times [2022-02-24 00:41:26,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:26,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745531588] [2022-02-24 00:41:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 185 proven. 13 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-02-24 00:41:26,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:26,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745531588] [2022-02-24 00:41:26,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745531588] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:41:26,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263212777] [2022-02-24 00:41:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:26,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:41:26,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:41:26,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:41:26,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 00:41:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:27,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:41:27,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:41:27,793 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-24 00:41:27,793 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 [2022-02-24 00:41:27,802 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 [2022-02-24 00:41:27,809 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 [2022-02-24 00:41:27,814 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 [2022-02-24 00:41:27,950 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-24 00:41:27,968 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 [2022-02-24 00:41:27,999 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:41:28,000 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 [2022-02-24 00:41:28,175 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 [2022-02-24 00:41:28,301 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:41:28,301 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 [2022-02-24 00:41:28,354 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 [2022-02-24 00:41:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 178 proven. 123 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-02-24 00:41:28,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:41:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-02-24 00:41:28,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263212777] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:41:28,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:41:28,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-02-24 00:41:28,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485860695] [2022-02-24 00:41:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:28,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:41:28,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:41:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:41:28,688 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) [2022-02-24 00:41:30,696 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 [] [2022-02-24 00:41:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:30,990 INFO L93 Difference]: Finished difference Result 6007 states and 8384 transitions. [2022-02-24 00:41:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:41:30,991 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 [2022-02-24 00:41:30,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:30,993 INFO L225 Difference]: With dead ends: 6007 [2022-02-24 00:41:30,993 INFO L226 Difference]: Without dead ends: 3171 [2022-02-24 00:41:30,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-24 00:41:30,996 INFO L933 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 [2022-02-24 00:41:30,997 INFO L934 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] [2022-02-24 00:41:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-02-24 00:41:31,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2844. [2022-02-24 00:41:31,062 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) [2022-02-24 00:41:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3957 transitions. [2022-02-24 00:41:31,123 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3957 transitions. Word has length 292 [2022-02-24 00:41:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:31,124 INFO L470 AbstractCegarLoop]: Abstraction has 2844 states and 3957 transitions. [2022-02-24 00:41:31,124 INFO L471 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) [2022-02-24 00:41:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3957 transitions. [2022-02-24 00:41:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-02-24 00:41:31,128 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:31,128 INFO L514 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] [2022-02-24 00:41:31,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 00:41:31,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-02-24 00:41:31,339 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:31,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1263432505, now seen corresponding path program 1 times [2022-02-24 00:41:31,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:31,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680675495] [2022-02-24 00:41:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-02-24 00:41:31,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:31,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680675495] [2022-02-24 00:41:31,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680675495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:31,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:31,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:31,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135127215] [2022-02-24 00:41:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:31,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:31,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:31,607 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) [2022-02-24 00:41:33,618 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 [] [2022-02-24 00:41:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:33,992 INFO L93 Difference]: Finished difference Result 5593 states and 7693 transitions. [2022-02-24 00:41:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:33,992 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 [2022-02-24 00:41:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:33,995 INFO L225 Difference]: With dead ends: 5593 [2022-02-24 00:41:33,995 INFO L226 Difference]: Without dead ends: 2757 [2022-02-24 00:41:33,998 INFO L932 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 [2022-02-24 00:41:33,999 INFO L933 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 [2022-02-24 00:41:34,000 INFO L934 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] [2022-02-24 00:41:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-02-24 00:41:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1603. [2022-02-24 00:41:34,036 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) [2022-02-24 00:41:34,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2213 transitions. [2022-02-24 00:41:34,038 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2213 transitions. Word has length 305 [2022-02-24 00:41:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:34,039 INFO L470 AbstractCegarLoop]: Abstraction has 1603 states and 2213 transitions. [2022-02-24 00:41:34,039 INFO L471 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) [2022-02-24 00:41:34,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2213 transitions. [2022-02-24 00:41:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-02-24 00:41:34,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:34,042 INFO L514 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] [2022-02-24 00:41:34,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:41:34,042 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:34,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:34,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2074742642, now seen corresponding path program 1 times [2022-02-24 00:41:34,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:34,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712329359] [2022-02-24 00:41:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 546 proven. 238 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-02-24 00:41:37,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:37,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712329359] [2022-02-24 00:41:37,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712329359] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:41:37,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580787818] [2022-02-24 00:41:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:41:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:41:37,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:41:37,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 00:41:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:39,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 299 conjunts are in the unsatisfiable core [2022-02-24 00:41:39,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:41:39,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:39,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:40,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:40,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:41:40,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:41:40,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:41:40,024 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 [2022-02-24 00:41:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:40,100 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 [2022-02-24 00:41:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:41:40,705 INFO L190 IndexEqualityManager]: detected not equals via solver