/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.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:39:20,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:39:20,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:39:20,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 00:39:20,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:39:20,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:39:20,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:39:20,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:39:20,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:39:20,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:39:20,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:39:20,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:39:20,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:39:20,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:39:20,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:39:20,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:39:20,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:39:20,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:39:20,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:39:20,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:39:20,558 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 00:39:20,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:39:20,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:39:20,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:39:20,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:39:20,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:39:20,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:39:20,586 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:39:20,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:39:20,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:39:20,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:39:20,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:39:20,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:39:20,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:39:20,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:39:20,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:39:20,589 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:39:20,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:39:20,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:39:20,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:39:20,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:39:20,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:39:20,826 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:39:20,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-24 00:39:20,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e012d5f/28ca2fd6b5b64720b626376f9836dd19/FLAG4bbd8dff1 [2022-02-24 00:39:21,293 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:39:21,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-02-24 00:39:21,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e012d5f/28ca2fd6b5b64720b626376f9836dd19/FLAG4bbd8dff1 [2022-02-24 00:39:21,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e012d5f/28ca2fd6b5b64720b626376f9836dd19 [2022-02-24 00:39:21,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:39:21,332 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:39:21,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:39:21,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:39:21,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:39:21,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfc4350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21, skipping insertion in model container [2022-02-24 00:39:21,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:39:21,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:39:21,620 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.04.i.cil-2.c[65405,65418] [2022-02-24 00:39:21,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:39:21,633 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:39:21,706 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.04.i.cil-2.c[65405,65418] [2022-02-24 00:39:21,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:39:21,718 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:39:21,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21 WrapperNode [2022-02-24 00:39:21,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:39:21,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:39:21,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:39:21,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:39:21,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:39:21,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:39:21,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:39:21,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:39:21,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (1/1) ... [2022-02-24 00:39:21,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:39:21,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:39:21,859 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 00:39:21,880 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 00:39:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:39:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:39:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:39:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-24 00:39:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-24 00:39:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:39:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-24 00:39:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:39:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:39:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:39:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:39:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:39:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:39:22,064 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:39:22,066 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:39:23,472 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:39:23,803 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-24 00:39:23,803 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-24 00:39:23,819 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:39:23,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:39:23,828 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:39:23,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:23 BoogieIcfgContainer [2022-02-24 00:39:23,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:39:23,831 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:39:23,831 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:39:23,832 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:39:23,834 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:23" (1/1) ... [2022-02-24 00:39:23,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:39:23 BasicIcfg [2022-02-24 00:39:23,869 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:39:23,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:39:23,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:39:23,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:39:23,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:39:21" (1/4) ... [2022-02-24 00:39:23,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae58a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:39:23, skipping insertion in model container [2022-02-24 00:39:23,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:21" (2/4) ... [2022-02-24 00:39:23,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae58a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:39:23, skipping insertion in model container [2022-02-24 00:39:23,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:23" (3/4) ... [2022-02-24 00:39:23,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae58a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:39:23, skipping insertion in model container [2022-02-24 00:39:23,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:39:23" (4/4) ... [2022-02-24 00:39:23,873 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.cqvasr [2022-02-24 00:39:23,877 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:39:23,877 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:39:23,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:39:23,908 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 00:39:23,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:39:23,920 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 00:39:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-24 00:39:23,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:23,925 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 00:39:23,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash 878389628, now seen corresponding path program 1 times [2022-02-24 00:39:23,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:23,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237443042] [2022-02-24 00:39:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:23,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:24,348 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 00:39:24,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:24,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237443042] [2022-02-24 00:39:24,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237443042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:24,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:24,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:24,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881997397] [2022-02-24 00:39:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:24,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:24,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:24,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:24,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:24,379 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 00:39:26,417 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 00:39:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:26,837 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-02-24 00:39:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:26,840 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 00:39:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:26,845 INFO L225 Difference]: With dead ends: 267 [2022-02-24 00:39:26,846 INFO L226 Difference]: Without dead ends: 122 [2022-02-24 00:39:26,850 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 00:39:26,858 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:26,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:39:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-24 00:39:26,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-02-24 00:39:26,902 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 00:39:26,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-02-24 00:39:26,908 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-02-24 00:39:26,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:26,908 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-02-24 00:39:26,908 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 00:39:26,908 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-02-24 00:39:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-24 00:39:26,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:26,911 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 00:39:26,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:39:26,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:26,915 INFO L85 PathProgramCache]: Analyzing trace with hash -189680389, now seen corresponding path program 1 times [2022-02-24 00:39:26,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:26,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442800609] [2022-02-24 00:39:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:26,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:27,087 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 00:39:27,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:27,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442800609] [2022-02-24 00:39:27,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442800609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:27,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:27,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:27,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125079420] [2022-02-24 00:39:27,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:27,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:27,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:27,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:27,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:27,089 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 00:39:29,108 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 00:39:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:29,329 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-02-24 00:39:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:29,329 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 00:39:29,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:29,331 INFO L225 Difference]: With dead ends: 327 [2022-02-24 00:39:29,331 INFO L226 Difference]: Without dead ends: 222 [2022-02-24 00:39:29,331 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 00:39:29,332 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:29,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:39:29,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-02-24 00:39:29,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-02-24 00:39:29,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 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 00:39:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-02-24 00:39:29,344 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-02-24 00:39:29,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:29,344 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-02-24 00:39:29,344 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 00:39:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-02-24 00:39:29,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-24 00:39:29,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:29,346 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 00:39:29,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:39:29,346 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:29,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:29,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1951828473, now seen corresponding path program 1 times [2022-02-24 00:39:29,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:29,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191122591] [2022-02-24 00:39:29,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:29,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:29,567 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 00:39:29,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:29,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191122591] [2022-02-24 00:39:29,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191122591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:29,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:29,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:29,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198149450] [2022-02-24 00:39:29,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:29,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:29,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:29,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:29,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:29,568 INFO L87 Difference]: Start difference. First operand 222 states and 326 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 00:39:31,587 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 00:39:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:31,930 INFO L93 Difference]: Finished difference Result 362 states and 537 transitions. [2022-02-24 00:39:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:31,930 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 00:39:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:31,932 INFO L225 Difference]: With dead ends: 362 [2022-02-24 00:39:31,932 INFO L226 Difference]: Without dead ends: 257 [2022-02-24 00:39:31,933 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 00:39:31,933 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:31,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-24 00:39:31,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-02-24 00:39:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 states have internal predecessors, (352), 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 00:39:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-02-24 00:39:31,943 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-02-24 00:39:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:31,944 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-02-24 00:39:31,944 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 00:39:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-02-24 00:39:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-24 00:39:31,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:31,946 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 00:39:31,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:39:31,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1231550136, now seen corresponding path program 2 times [2022-02-24 00:39:31,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:31,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380351080] [2022-02-24 00:39:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:31,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:32,103 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 00:39:32,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:32,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380351080] [2022-02-24 00:39:32,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380351080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:32,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:32,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:32,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511352281] [2022-02-24 00:39:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:32,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:32,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:32,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:32,105 INFO L87 Difference]: Start difference. First operand 240 states and 356 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 00:39:34,124 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 00:39:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:34,507 INFO L93 Difference]: Finished difference Result 645 states and 966 transitions. [2022-02-24 00:39:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:34,509 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 00:39:34,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:34,511 INFO L225 Difference]: With dead ends: 645 [2022-02-24 00:39:34,511 INFO L226 Difference]: Without dead ends: 421 [2022-02-24 00:39:34,512 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 00:39:34,513 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 00:39:34,513 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 00:39:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-24 00:39:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 262. [2022-02-24 00:39:34,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 257 states have (on average 1.490272373540856) internal successors, (383), 257 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 00:39:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 387 transitions. [2022-02-24 00:39:34,523 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 387 transitions. Word has length 73 [2022-02-24 00:39:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:34,530 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 387 transitions. [2022-02-24 00:39:34,531 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 00:39:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 387 transitions. [2022-02-24 00:39:34,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-24 00:39:34,536 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:34,536 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 00:39:34,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:39:34,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1593666200, now seen corresponding path program 1 times [2022-02-24 00:39:34,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:34,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196197276] [2022-02-24 00:39:34,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:34,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:34,671 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 00:39:34,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:34,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196197276] [2022-02-24 00:39:34,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196197276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:34,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:34,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:34,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676675632] [2022-02-24 00:39:34,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:34,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:34,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:34,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:34,673 INFO L87 Difference]: Start difference. First operand 262 states and 387 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 00:39:36,682 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 00:39:37,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:37,034 INFO L93 Difference]: Finished difference Result 668 states and 995 transitions. [2022-02-24 00:39:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:37,035 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 00:39:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:37,036 INFO L225 Difference]: With dead ends: 668 [2022-02-24 00:39:37,036 INFO L226 Difference]: Without dead ends: 422 [2022-02-24 00:39:37,037 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 00:39:37,038 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:37,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-02-24 00:39:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 264. [2022-02-24 00:39:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4826254826254825) internal successors, (384), 259 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 00:39:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 388 transitions. [2022-02-24 00:39:37,049 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 388 transitions. Word has length 73 [2022-02-24 00:39:37,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:37,049 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 388 transitions. [2022-02-24 00:39:37,049 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 00:39:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 388 transitions. [2022-02-24 00:39:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-24 00:39:37,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:37,050 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 00:39:37,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:39:37,050 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash 209061239, now seen corresponding path program 1 times [2022-02-24 00:39:37,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:37,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628443409] [2022-02-24 00:39:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:37,192 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 00:39:37,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:37,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628443409] [2022-02-24 00:39:37,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628443409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:37,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:37,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:37,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571605912] [2022-02-24 00:39:37,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:37,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:37,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:37,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:37,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:37,194 INFO L87 Difference]: Start difference. First operand 264 states and 388 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 00:39:39,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:39,582 INFO L93 Difference]: Finished difference Result 670 states and 993 transitions. [2022-02-24 00:39:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:39,582 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 00:39:39,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:39,584 INFO L225 Difference]: With dead ends: 670 [2022-02-24 00:39:39,584 INFO L226 Difference]: Without dead ends: 422 [2022-02-24 00:39:39,584 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 00:39:39,585 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 00:39:39,585 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 00:39:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-02-24 00:39:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 266. [2022-02-24 00:39:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.475095785440613) internal successors, (385), 261 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 00:39:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 389 transitions. [2022-02-24 00:39:39,595 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 389 transitions. Word has length 74 [2022-02-24 00:39:39,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:39,596 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 389 transitions. [2022-02-24 00:39:39,596 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 00:39:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 389 transitions. [2022-02-24 00:39:39,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-24 00:39:39,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:39,598 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 00:39:39,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:39:39,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:39,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 281244916, now seen corresponding path program 1 times [2022-02-24 00:39:39,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:39,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091873] [2022-02-24 00:39:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:39,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:39,758 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 00:39:39,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:39,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091873] [2022-02-24 00:39:39,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:39,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:39,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:39,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005126866] [2022-02-24 00:39:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:39,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:39,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:39,759 INFO L87 Difference]: Start difference. First operand 266 states and 389 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 00:39:41,768 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 00:39:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:42,112 INFO L93 Difference]: Finished difference Result 672 states and 991 transitions. [2022-02-24 00:39:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:42,112 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 00:39:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:42,114 INFO L225 Difference]: With dead ends: 672 [2022-02-24 00:39:42,114 INFO L226 Difference]: Without dead ends: 422 [2022-02-24 00:39:42,114 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 00:39:42,115 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:42,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:42,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-02-24 00:39:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 268. [2022-02-24 00:39:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.467680608365019) internal successors, (386), 263 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-02-24 00:39:42,122 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 75 [2022-02-24 00:39:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:42,122 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-02-24 00:39:42,122 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 00:39:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-02-24 00:39:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-24 00:39:42,123 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:42,123 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 00:39:42,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:39:42,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1742080012, now seen corresponding path program 1 times [2022-02-24 00:39:42,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:42,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360909537] [2022-02-24 00:39:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:42,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:42,301 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 00:39:42,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:42,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360909537] [2022-02-24 00:39:42,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360909537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:42,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:42,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:42,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786792323] [2022-02-24 00:39:42,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:42,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:42,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:42,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:42,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:42,305 INFO L87 Difference]: Start difference. First operand 268 states and 390 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 00:39:44,320 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 00:39:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:44,727 INFO L93 Difference]: Finished difference Result 674 states and 989 transitions. [2022-02-24 00:39:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:44,727 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 00:39:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:44,729 INFO L225 Difference]: With dead ends: 674 [2022-02-24 00:39:44,729 INFO L226 Difference]: Without dead ends: 422 [2022-02-24 00:39:44,730 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 00:39:44,731 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 00:39:44,732 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 00:39:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-02-24 00:39:44,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 270. [2022-02-24 00:39:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.460377358490566) internal successors, (387), 265 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:44,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 391 transitions. [2022-02-24 00:39:44,740 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 391 transitions. Word has length 76 [2022-02-24 00:39:44,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:44,740 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 391 transitions. [2022-02-24 00:39:44,740 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 00:39:44,740 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 391 transitions. [2022-02-24 00:39:44,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 00:39:44,741 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:44,741 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 00:39:44,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:39:44,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:44,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:44,742 INFO L85 PathProgramCache]: Analyzing trace with hash 580115528, now seen corresponding path program 1 times [2022-02-24 00:39:44,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:44,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437883514] [2022-02-24 00:39:44,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:44,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:44,891 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 00:39:44,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:44,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437883514] [2022-02-24 00:39:44,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437883514] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:44,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:44,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:44,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714020617] [2022-02-24 00:39:44,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:44,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:44,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:44,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:44,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:44,892 INFO L87 Difference]: Start difference. First operand 270 states and 391 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 00:39:46,901 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 00:39:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:47,249 INFO L93 Difference]: Finished difference Result 542 states and 793 transitions. [2022-02-24 00:39:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:47,250 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 00:39:47,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:47,251 INFO L225 Difference]: With dead ends: 542 [2022-02-24 00:39:47,251 INFO L226 Difference]: Without dead ends: 404 [2022-02-24 00:39:47,252 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 00:39:47,252 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:47,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-24 00:39:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-02-24 00:39:47,261 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 00:39:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 585 transitions. [2022-02-24 00:39:47,262 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 585 transitions. Word has length 77 [2022-02-24 00:39:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:47,262 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 585 transitions. [2022-02-24 00:39:47,262 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 00:39:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 585 transitions. [2022-02-24 00:39:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 00:39:47,263 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:47,263 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 00:39:47,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:39:47,263 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash 611135335, now seen corresponding path program 1 times [2022-02-24 00:39:47,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:47,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162090780] [2022-02-24 00:39:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:47,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:47,399 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 00:39:47,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:47,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162090780] [2022-02-24 00:39:47,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162090780] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:47,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:47,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:47,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082066653] [2022-02-24 00:39:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:47,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:47,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:47,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:47,403 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 00:39:49,415 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 00:39:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:49,630 INFO L93 Difference]: Finished difference Result 700 states and 1016 transitions. [2022-02-24 00:39:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:49,631 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 00:39:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:49,632 INFO L225 Difference]: With dead ends: 700 [2022-02-24 00:39:49,632 INFO L226 Difference]: Without dead ends: 428 [2022-02-24 00:39:49,633 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 00:39:49,633 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:49,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:39:49,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-02-24 00:39:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-02-24 00:39:49,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.4491725768321513) internal successors, (613), 423 states have internal predecessors, (613), 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 00:39:49,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 617 transitions. [2022-02-24 00:39:49,642 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 617 transitions. Word has length 77 [2022-02-24 00:39:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:49,642 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 617 transitions. [2022-02-24 00:39:49,642 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 00:39:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 617 transitions. [2022-02-24 00:39:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-24 00:39:49,643 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:49,643 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 00:39:49,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:39:49,643 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -522779701, now seen corresponding path program 1 times [2022-02-24 00:39:49,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:49,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087798180] [2022-02-24 00:39:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:49,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:49,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:49,753 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 00:39:49,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:49,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087798180] [2022-02-24 00:39:49,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087798180] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:49,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:49,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:49,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762968583] [2022-02-24 00:39:49,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:49,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:49,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:49,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:49,754 INFO L87 Difference]: Start difference. First operand 428 states and 617 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 00:39:51,767 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 00:39:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:52,173 INFO L93 Difference]: Finished difference Result 858 states and 1246 transitions. [2022-02-24 00:39:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:52,174 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 00:39:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:52,176 INFO L225 Difference]: With dead ends: 858 [2022-02-24 00:39:52,176 INFO L226 Difference]: Without dead ends: 562 [2022-02-24 00:39:52,176 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 00:39:52,177 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 00:39:52,177 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 00:39:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-02-24 00:39:52,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-02-24 00:39:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4488330341113107) internal successors, (807), 557 states have internal predecessors, (807), 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 00:39:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 811 transitions. [2022-02-24 00:39:52,188 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 811 transitions. Word has length 97 [2022-02-24 00:39:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:52,188 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 811 transitions. [2022-02-24 00:39:52,188 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 00:39:52,188 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 811 transitions. [2022-02-24 00:39:52,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:39:52,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:52,189 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 00:39:52,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:39:52,189 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:52,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:52,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1194080795, now seen corresponding path program 1 times [2022-02-24 00:39:52,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:52,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377068722] [2022-02-24 00:39:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:52,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:52,326 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 00:39:52,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:52,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377068722] [2022-02-24 00:39:52,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377068722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:52,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:52,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:39:52,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812533638] [2022-02-24 00:39:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:52,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:39:52,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:52,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:39:52,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:39:52,328 INFO L87 Difference]: Start difference. First operand 562 states and 811 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 00:39:54,336 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 00:39:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:54,695 INFO L93 Difference]: Finished difference Result 1127 states and 1635 transitions. [2022-02-24 00:39:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:39:54,696 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 00:39:54,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:54,698 INFO L225 Difference]: With dead ends: 1127 [2022-02-24 00:39:54,698 INFO L226 Difference]: Without dead ends: 697 [2022-02-24 00:39:54,699 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 00:39:54,699 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:54,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-02-24 00:39:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-02-24 00:39:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.4479768786127167) internal successors, (1002), 692 states have internal predecessors, (1002), 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 00:39:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1006 transitions. [2022-02-24 00:39:54,713 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1006 transitions. Word has length 118 [2022-02-24 00:39:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:54,713 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 1006 transitions. [2022-02-24 00:39:54,713 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 00:39:54,713 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1006 transitions. [2022-02-24 00:39:54,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-24 00:39:54,714 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:54,714 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2022-02-24 00:39:54,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:39:54,715 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1203970458, now seen corresponding path program 1 times [2022-02-24 00:39:54,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:54,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940536974] [2022-02-24 00:39:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:54,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:54,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-24 00:39:54,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:54,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940536974] [2022-02-24 00:39:54,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940536974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:54,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:54,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:54,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587437826] [2022-02-24 00:39:54,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:54,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:54,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:54,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:54,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:54,897 INFO L87 Difference]: Start difference. First operand 697 states and 1006 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:56,906 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 00:39:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:57,278 INFO L93 Difference]: Finished difference Result 1832 states and 2646 transitions. [2022-02-24 00:39:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-02-24 00:39:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:57,282 INFO L225 Difference]: With dead ends: 1832 [2022-02-24 00:39:57,282 INFO L226 Difference]: Without dead ends: 1151 [2022-02-24 00:39:57,283 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 00:39:57,284 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:57,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-02-24 00:39:57,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 802. [2022-02-24 00:39:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.4454203262233376) internal successors, (1152), 797 states have internal predecessors, (1152), 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 00:39:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1156 transitions. [2022-02-24 00:39:57,302 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1156 transitions. Word has length 139 [2022-02-24 00:39:57,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:57,303 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 1156 transitions. [2022-02-24 00:39:57,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1156 transitions. [2022-02-24 00:39:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-24 00:39:57,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:57,304 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 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] [2022-02-24 00:39:57,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:39:57,305 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1297688107, now seen corresponding path program 1 times [2022-02-24 00:39:57,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:57,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005245630] [2022-02-24 00:39:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:57,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:39:57,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:57,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005245630] [2022-02-24 00:39:57,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005245630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:57,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:57,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:57,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051181682] [2022-02-24 00:39:57,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:57,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:57,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:57,475 INFO L87 Difference]: Start difference. First operand 802 states and 1156 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 00:39:59,483 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 00:39:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:59,863 INFO L93 Difference]: Finished difference Result 1962 states and 2841 transitions. [2022-02-24 00:39:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:59,864 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 140 [2022-02-24 00:39:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:59,867 INFO L225 Difference]: With dead ends: 1962 [2022-02-24 00:39:59,867 INFO L226 Difference]: Without dead ends: 1176 [2022-02-24 00:39:59,868 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 00:39:59,868 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 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 00:39:59,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 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 00:39:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-02-24 00:39:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-02-24 00:39:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4594921402660217) internal successors, (1207), 827 states have internal predecessors, (1207), 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 00:39:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1211 transitions. [2022-02-24 00:39:59,884 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1211 transitions. Word has length 140 [2022-02-24 00:39:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:59,884 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1211 transitions. [2022-02-24 00:39:59,884 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 00:39:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1211 transitions. [2022-02-24 00:39:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 00:39:59,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:59,886 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 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] [2022-02-24 00:39:59,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:39:59,886 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:59,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:59,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1111935820, now seen corresponding path program 1 times [2022-02-24 00:39:59,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:59,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594406195] [2022-02-24 00:39:59,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-24 00:40:00,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:00,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594406195] [2022-02-24 00:40:00,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594406195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:00,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:00,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:00,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975471907] [2022-02-24 00:40:00,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:00,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:00,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:00,029 INFO L87 Difference]: Start difference. First operand 832 states and 1211 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 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 00:40:02,037 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 00:40:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:02,396 INFO L93 Difference]: Finished difference Result 1992 states and 2891 transitions. [2022-02-24 00:40:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:02,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 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 157 [2022-02-24 00:40:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:02,400 INFO L225 Difference]: With dead ends: 1992 [2022-02-24 00:40:02,400 INFO L226 Difference]: Without dead ends: 1176 [2022-02-24 00:40:02,402 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 00:40:02,402 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:02,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-02-24 00:40:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-02-24 00:40:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4474002418379686) internal successors, (1197), 827 states have internal predecessors, (1197), 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 00:40:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1201 transitions. [2022-02-24 00:40:02,436 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1201 transitions. Word has length 157 [2022-02-24 00:40:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:02,459 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1201 transitions. [2022-02-24 00:40:02,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 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 00:40:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1201 transitions. [2022-02-24 00:40:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-24 00:40:02,461 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:02,462 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 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] [2022-02-24 00:40:02,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:40:02,462 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1029170936, now seen corresponding path program 1 times [2022-02-24 00:40:02,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:02,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925197939] [2022-02-24 00:40:02,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:02,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-24 00:40:02,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:02,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925197939] [2022-02-24 00:40:02,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925197939] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:02,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:02,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:02,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143072353] [2022-02-24 00:40:02,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:02,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:02,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:02,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:02,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:02,613 INFO L87 Difference]: Start difference. First operand 832 states and 1201 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:04,627 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 00:40:05,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:05,030 INFO L93 Difference]: Finished difference Result 1934 states and 2798 transitions. [2022-02-24 00:40:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:05,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-24 00:40:05,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:05,033 INFO L225 Difference]: With dead ends: 1934 [2022-02-24 00:40:05,033 INFO L226 Difference]: Without dead ends: 1118 [2022-02-24 00:40:05,035 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 00:40:05,035 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 75 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:05,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 533 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-02-24 00:40:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-02-24 00:40:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4407530454042081) internal successors, (1301), 903 states have internal predecessors, (1301), 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 00:40:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1305 transitions. [2022-02-24 00:40:05,051 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1305 transitions. Word has length 158 [2022-02-24 00:40:05,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:05,051 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1305 transitions. [2022-02-24 00:40:05,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1305 transitions. [2022-02-24 00:40:05,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-24 00:40:05,053 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:05,053 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:05,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:40:05,053 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:05,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:05,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2062176669, now seen corresponding path program 1 times [2022-02-24 00:40:05,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:05,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297633628] [2022-02-24 00:40:05,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:05,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-24 00:40:05,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:05,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297633628] [2022-02-24 00:40:05,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297633628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:05,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:05,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:05,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974162981] [2022-02-24 00:40:05,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:05,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:05,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:05,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:05,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:05,226 INFO L87 Difference]: Start difference. First operand 908 states and 1305 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 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 00:40:07,234 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 00:40:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:07,624 INFO L93 Difference]: Finished difference Result 1850 states and 2667 transitions. [2022-02-24 00:40:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:07,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 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 172 [2022-02-24 00:40:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:07,627 INFO L225 Difference]: With dead ends: 1850 [2022-02-24 00:40:07,628 INFO L226 Difference]: Without dead ends: 1118 [2022-02-24 00:40:07,629 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 00:40:07,629 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 77 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:07,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 531 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:07,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-02-24 00:40:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-02-24 00:40:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4363233665559247) internal successors, (1297), 903 states have internal predecessors, (1297), 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 00:40:07,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1301 transitions. [2022-02-24 00:40:07,644 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1301 transitions. Word has length 172 [2022-02-24 00:40:07,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:07,644 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1301 transitions. [2022-02-24 00:40:07,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 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 00:40:07,644 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1301 transitions. [2022-02-24 00:40:07,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:40:07,646 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:07,646 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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] [2022-02-24 00:40:07,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:40:07,646 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1106588088, now seen corresponding path program 1 times [2022-02-24 00:40:07,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:07,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220442020] [2022-02-24 00:40:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-24 00:40:07,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:07,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220442020] [2022-02-24 00:40:07,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220442020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:07,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:07,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:07,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318315113] [2022-02-24 00:40:07,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:07,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:07,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:07,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:07,828 INFO L87 Difference]: Start difference. First operand 908 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 00:40:09,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:10,232 INFO L93 Difference]: Finished difference Result 1838 states and 2647 transitions. [2022-02-24 00:40:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 173 [2022-02-24 00:40:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:10,236 INFO L225 Difference]: With dead ends: 1838 [2022-02-24 00:40:10,236 INFO L226 Difference]: Without dead ends: 1106 [2022-02-24 00:40:10,237 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 00:40:10,237 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:10,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 525 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:10,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-02-24 00:40:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 908. [2022-02-24 00:40:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4318936877076411) internal successors, (1293), 903 states have internal predecessors, (1293), 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 00:40:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1297 transitions. [2022-02-24 00:40:10,252 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1297 transitions. Word has length 173 [2022-02-24 00:40:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:10,253 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1297 transitions. [2022-02-24 00:40:10,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 00:40:10,253 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1297 transitions. [2022-02-24 00:40:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-24 00:40:10,254 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:10,254 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 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 00:40:10,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:40:10,255 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:10,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:10,255 INFO L85 PathProgramCache]: Analyzing trace with hash -180209632, now seen corresponding path program 1 times [2022-02-24 00:40:10,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:10,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196667849] [2022-02-24 00:40:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:10,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-24 00:40:10,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:10,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196667849] [2022-02-24 00:40:10,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196667849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:10,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:10,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:10,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510431851] [2022-02-24 00:40:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:10,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:10,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:10,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:10,460 INFO L87 Difference]: Start difference. First operand 908 states and 1297 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 00:40:12,468 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 00:40:12,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:12,840 INFO L93 Difference]: Finished difference Result 2259 states and 3218 transitions. [2022-02-24 00:40:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 175 [2022-02-24 00:40:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:12,843 INFO L225 Difference]: With dead ends: 2259 [2022-02-24 00:40:12,843 INFO L226 Difference]: Without dead ends: 1367 [2022-02-24 00:40:12,845 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 00:40:12,845 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:12,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-02-24 00:40:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1098. [2022-02-24 00:40:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1093 states have (on average 1.4574565416285452) internal successors, (1593), 1093 states have internal predecessors, (1593), 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 00:40:12,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1597 transitions. [2022-02-24 00:40:12,863 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1597 transitions. Word has length 175 [2022-02-24 00:40:12,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:12,864 INFO L470 AbstractCegarLoop]: Abstraction has 1098 states and 1597 transitions. [2022-02-24 00:40:12,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 00:40:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1597 transitions. [2022-02-24 00:40:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 00:40:12,866 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:12,866 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 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 00:40:12,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:40:12,866 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1515897942, now seen corresponding path program 1 times [2022-02-24 00:40:12,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:12,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457934523] [2022-02-24 00:40:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:12,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-02-24 00:40:13,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:13,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457934523] [2022-02-24 00:40:13,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457934523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:13,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:13,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:13,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360428873] [2022-02-24 00:40:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:13,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:13,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:13,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:13,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:13,024 INFO L87 Difference]: Start difference. First operand 1098 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:14,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:16,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:18,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:20,847 WARN L534 Checker$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 00:40:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:21,181 INFO L93 Difference]: Finished difference Result 2226 states and 3233 transitions. [2022-02-24 00:40:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:21,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-24 00:40:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:21,184 INFO L225 Difference]: With dead ends: 2226 [2022-02-24 00:40:21,184 INFO L226 Difference]: Without dead ends: 1144 [2022-02-24 00:40:21,186 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 00:40:21,187 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:21,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 471 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-24 00:40:21,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-02-24 00:40:21,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1118. [2022-02-24 00:40:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1113 states have (on average 1.4564240790655885) internal successors, (1621), 1113 states have internal predecessors, (1621), 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 00:40:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1625 transitions. [2022-02-24 00:40:21,211 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1625 transitions. Word has length 176 [2022-02-24 00:40:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:21,212 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 1625 transitions. [2022-02-24 00:40:21,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1625 transitions. [2022-02-24 00:40:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-24 00:40:21,214 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:21,214 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 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] [2022-02-24 00:40:21,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:40:21,214 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1807907067, now seen corresponding path program 1 times [2022-02-24 00:40:21,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:21,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637787864] [2022-02-24 00:40:21,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:21,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 107 proven. 3 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-02-24 00:40:21,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:21,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637787864] [2022-02-24 00:40:21,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637787864] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:40:21,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877148120] [2022-02-24 00:40:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:21,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:40:21,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:40:21,471 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 00:40:21,494 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 00:40:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:22,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-24 00:40:22,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:40:22,467 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-24 00:40:22,470 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 00:40:22,475 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 00:40:22,481 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 00:40:22,503 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 00:40:22,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-24 00:40:22,617 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 00:40:22,736 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-24 00:40:22,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-24 00:40:22,748 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 00:40:22,784 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:40:22,785 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 00:40:22,950 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:40:22,950 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 00:40:22,999 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 00:40:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 102 proven. 70 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-02-24 00:40:23,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:40:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-02-24 00:40:23,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877148120] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:40:23,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:40:23,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 13 [2022-02-24 00:40:23,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879140999] [2022-02-24 00:40:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:23,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:40:23,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:40:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-02-24 00:40:23,242 INFO L87 Difference]: Start difference. First operand 1118 states and 1625 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 00:40:25,249 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 00:40:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:25,484 INFO L93 Difference]: Finished difference Result 2668 states and 3858 transitions. [2022-02-24 00:40:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:40:25,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 180 [2022-02-24 00:40:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:25,489 INFO L225 Difference]: With dead ends: 2668 [2022-02-24 00:40:25,489 INFO L226 Difference]: Without dead ends: 1566 [2022-02-24 00:40:25,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-24 00:40:25,490 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 92 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:25,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 310 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:40:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-02-24 00:40:25,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1238. [2022-02-24 00:40:25,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.4525547445255473) internal successors, (1791), 1233 states have internal predecessors, (1791), 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 00:40:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1795 transitions. [2022-02-24 00:40:25,512 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1795 transitions. Word has length 180 [2022-02-24 00:40:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:25,513 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1795 transitions. [2022-02-24 00:40:25,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 00:40:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1795 transitions. [2022-02-24 00:40:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-24 00:40:25,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:25,515 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:25,554 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 00:40:25,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-02-24 00:40:25,734 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:25,734 INFO L85 PathProgramCache]: Analyzing trace with hash -209595120, now seen corresponding path program 1 times [2022-02-24 00:40:25,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:25,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747003342] [2022-02-24 00:40:25,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:25,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:25,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-02-24 00:40:25,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:25,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747003342] [2022-02-24 00:40:25,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747003342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:25,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:25,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:25,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205488781] [2022-02-24 00:40:25,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:25,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:25,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:25,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:25,988 INFO L87 Difference]: Start difference. First operand 1238 states and 1795 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 00:40:28,003 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 00:40:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:28,320 INFO L93 Difference]: Finished difference Result 2619 states and 3782 transitions. [2022-02-24 00:40:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:28,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-02-24 00:40:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:28,324 INFO L225 Difference]: With dead ends: 2619 [2022-02-24 00:40:28,324 INFO L226 Difference]: Without dead ends: 1397 [2022-02-24 00:40:28,326 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 00:40:28,326 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:28,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 474 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-02-24 00:40:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1348. [2022-02-24 00:40:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.445271779597915) internal successors, (1941), 1343 states have internal predecessors, (1941), 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 00:40:28,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1945 transitions. [2022-02-24 00:40:28,348 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1945 transitions. Word has length 181 [2022-02-24 00:40:28,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:28,349 INFO L470 AbstractCegarLoop]: Abstraction has 1348 states and 1945 transitions. [2022-02-24 00:40:28,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 00:40:28,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1945 transitions. [2022-02-24 00:40:28,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-02-24 00:40:28,351 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:28,351 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:28,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:40:28,351 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1810219865, now seen corresponding path program 1 times [2022-02-24 00:40:28,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:28,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590011591] [2022-02-24 00:40:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 231 proven. 8 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-02-24 00:40:28,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:28,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590011591] [2022-02-24 00:40:28,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590011591] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:40:28,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133209911] [2022-02-24 00:40:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:40:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:40:28,521 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 00:40:28,522 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 00:40:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:29,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:40:29,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:40:29,392 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-02-24 00:40:29,393 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 00:40:29,396 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 00:40:29,401 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 00:40:29,405 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 00:40:29,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-24 00:40:29,488 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 00:40:29,521 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:40:29,521 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 00:40:29,604 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 00:40:29,701 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:40:29,701 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 00:40:29,750 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 00:40:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 224 proven. 78 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-02-24 00:40:29,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:40:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-02-24 00:40:29,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133209911] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:40:29,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:40:29,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-02-24 00:40:29,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583645729] [2022-02-24 00:40:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:29,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:40:29,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:40:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:40:29,979 INFO L87 Difference]: Start difference. First operand 1348 states and 1945 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 00:40:31,985 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 00:40:32,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:32,248 INFO L93 Difference]: Finished difference Result 3020 states and 4354 transitions. [2022-02-24 00:40:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:40:32,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 199 [2022-02-24 00:40:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:32,253 INFO L225 Difference]: With dead ends: 3020 [2022-02-24 00:40:32,253 INFO L226 Difference]: Without dead ends: 1688 [2022-02-24 00:40:32,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 399 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 00:40:32,255 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:32,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 288 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:40:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2022-02-24 00:40:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1348. [2022-02-24 00:40:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.426656738644825) internal successors, (1916), 1343 states have internal predecessors, (1916), 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 00:40:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1920 transitions. [2022-02-24 00:40:32,280 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1920 transitions. Word has length 199 [2022-02-24 00:40:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:32,280 INFO L470 AbstractCegarLoop]: Abstraction has 1348 states and 1920 transitions. [2022-02-24 00:40:32,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 00:40:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1920 transitions. [2022-02-24 00:40:32,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-24 00:40:32,282 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:32,282 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-24 00:40:32,321 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 00:40:32,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-02-24 00:40:32,496 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash 614506545, now seen corresponding path program 1 times [2022-02-24 00:40:32,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:32,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590568292] [2022-02-24 00:40:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-24 00:40:32,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:32,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590568292] [2022-02-24 00:40:32,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590568292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:32,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:32,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:32,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145744193] [2022-02-24 00:40:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:32,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:32,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:32,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:32,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:32,677 INFO L87 Difference]: Start difference. First operand 1348 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 00:40:34,689 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 00:40:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:35,089 INFO L93 Difference]: Finished difference Result 2787 states and 3973 transitions. [2022-02-24 00:40:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:35,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 215 [2022-02-24 00:40:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:35,094 INFO L225 Difference]: With dead ends: 2787 [2022-02-24 00:40:35,094 INFO L226 Difference]: Without dead ends: 1704 [2022-02-24 00:40:35,095 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 00:40:35,096 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 76 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:35,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 530 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:35,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-02-24 00:40:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1428. [2022-02-24 00:40:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1423 states have (on average 1.4202389318341533) internal successors, (2021), 1423 states have internal predecessors, (2021), 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 00:40:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2025 transitions. [2022-02-24 00:40:35,122 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2025 transitions. Word has length 215 [2022-02-24 00:40:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:35,122 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 2025 transitions. [2022-02-24 00:40:35,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 00:40:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2025 transitions. [2022-02-24 00:40:35,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-24 00:40:35,124 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:35,124 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 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] [2022-02-24 00:40:35,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:40:35,124 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:35,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:35,125 INFO L85 PathProgramCache]: Analyzing trace with hash 792566790, now seen corresponding path program 1 times [2022-02-24 00:40:35,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:35,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292219864] [2022-02-24 00:40:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-24 00:40:35,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:35,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292219864] [2022-02-24 00:40:35,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292219864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:35,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:35,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:35,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956375083] [2022-02-24 00:40:35,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:35,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:35,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:35,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:35,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:35,329 INFO L87 Difference]: Start difference. First operand 1428 states and 2025 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 00:40:37,338 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 00:40:37,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:37,730 INFO L93 Difference]: Finished difference Result 2836 states and 4036 transitions. [2022-02-24 00:40:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:37,731 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 216 [2022-02-24 00:40:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:37,735 INFO L225 Difference]: With dead ends: 2836 [2022-02-24 00:40:37,735 INFO L226 Difference]: Without dead ends: 1689 [2022-02-24 00:40:37,737 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 00:40:37,737 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 72 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:37,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 524 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-02-24 00:40:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1433. [2022-02-24 00:40:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1428 states have (on average 1.4187675070028012) internal successors, (2026), 1428 states have internal predecessors, (2026), 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 00:40:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2030 transitions. [2022-02-24 00:40:37,765 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2030 transitions. Word has length 216 [2022-02-24 00:40:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:37,765 INFO L470 AbstractCegarLoop]: Abstraction has 1433 states and 2030 transitions. [2022-02-24 00:40:37,766 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 00:40:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2030 transitions. [2022-02-24 00:40:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-02-24 00:40:37,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:37,768 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:37,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:40:37,768 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1390782110, now seen corresponding path program 1 times [2022-02-24 00:40:37,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:37,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135957082] [2022-02-24 00:40:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-02-24 00:40:37,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:37,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135957082] [2022-02-24 00:40:37,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135957082] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:37,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:37,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:37,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658392928] [2022-02-24 00:40:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:37,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:37,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:37,976 INFO L87 Difference]: Start difference. First operand 1433 states and 2030 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 00:40:39,984 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 00:40:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:40,273 INFO L93 Difference]: Finished difference Result 2941 states and 4162 transitions. [2022-02-24 00:40:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:40,273 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 219 [2022-02-24 00:40:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:40,291 INFO L225 Difference]: With dead ends: 2941 [2022-02-24 00:40:40,291 INFO L226 Difference]: Without dead ends: 1524 [2022-02-24 00:40:40,292 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 00:40:40,293 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 23 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:40,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 478 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-02-24 00:40:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1478. [2022-02-24 00:40:40,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1473 states have (on average 1.419551934826884) internal successors, (2091), 1473 states have internal predecessors, (2091), 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 00:40:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2095 transitions. [2022-02-24 00:40:40,327 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2095 transitions. Word has length 219 [2022-02-24 00:40:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:40,327 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 2095 transitions. [2022-02-24 00:40:40,328 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 00:40:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2095 transitions. [2022-02-24 00:40:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-24 00:40:40,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:40,330 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:40,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:40:40,331 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1029021668, now seen corresponding path program 1 times [2022-02-24 00:40:40,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:40,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576506244] [2022-02-24 00:40:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:40,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-02-24 00:40:40,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:40,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576506244] [2022-02-24 00:40:40,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576506244] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:40,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:40,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:40,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218797179] [2022-02-24 00:40:40,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:40,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:40,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:40,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:40,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:40,545 INFO L87 Difference]: Start difference. First operand 1478 states and 2095 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 00:40:42,553 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 00:40:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:42,934 INFO L93 Difference]: Finished difference Result 3026 states and 4293 transitions. [2022-02-24 00:40:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:42,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 240 [2022-02-24 00:40:42,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:42,939 INFO L225 Difference]: With dead ends: 3026 [2022-02-24 00:40:42,939 INFO L226 Difference]: Without dead ends: 1839 [2022-02-24 00:40:42,941 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 00:40:42,949 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:42,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 528 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-02-24 00:40:42,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1563. [2022-02-24 00:40:42,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1558 states have (on average 1.4127086007702183) internal successors, (2201), 1558 states have internal predecessors, (2201), 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 00:40:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2205 transitions. [2022-02-24 00:40:42,975 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2205 transitions. Word has length 240 [2022-02-24 00:40:42,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:42,975 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2205 transitions. [2022-02-24 00:40:42,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 00:40:42,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2205 transitions. [2022-02-24 00:40:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-24 00:40:42,977 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:42,977 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:42,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:40:42,978 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:42,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash -513501219, now seen corresponding path program 1 times [2022-02-24 00:40:42,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:42,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277054040] [2022-02-24 00:40:42,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:42,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-02-24 00:40:43,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:43,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277054040] [2022-02-24 00:40:43,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277054040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:43,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:43,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:43,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257742050] [2022-02-24 00:40:43,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:43,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:43,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:43,172 INFO L87 Difference]: Start difference. First operand 1563 states and 2205 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 00:40:45,180 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 00:40:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:45,598 INFO L93 Difference]: Finished difference Result 3338 states and 4742 transitions. [2022-02-24 00:40:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:45,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 240 [2022-02-24 00:40:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:45,602 INFO L225 Difference]: With dead ends: 3338 [2022-02-24 00:40:45,602 INFO L226 Difference]: Without dead ends: 2083 [2022-02-24 00:40:45,603 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 00:40:45,604 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:45,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 476 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-02-24 00:40:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1558. [2022-02-24 00:40:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1553 states have (on average 1.3979394719896974) internal successors, (2171), 1553 states have internal predecessors, (2171), 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 00:40:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2175 transitions. [2022-02-24 00:40:45,660 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2175 transitions. Word has length 240 [2022-02-24 00:40:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:45,660 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2175 transitions. [2022-02-24 00:40:45,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 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 00:40:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2175 transitions. [2022-02-24 00:40:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-24 00:40:45,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:45,663 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:45,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:40:45,663 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1382799739, now seen corresponding path program 1 times [2022-02-24 00:40:45,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:45,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111259866] [2022-02-24 00:40:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:45,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-02-24 00:40:45,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:45,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111259866] [2022-02-24 00:40:45,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111259866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:45,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:45,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:45,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308466169] [2022-02-24 00:40:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:45,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:45,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:45,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:45,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:45,832 INFO L87 Difference]: Start difference. First operand 1558 states and 2175 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:47,840 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 00:40:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:48,287 INFO L93 Difference]: Finished difference Result 2888 states and 4063 transitions. [2022-02-24 00:40:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:48,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-02-24 00:40:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:48,290 INFO L225 Difference]: With dead ends: 2888 [2022-02-24 00:40:48,290 INFO L226 Difference]: Without dead ends: 1637 [2022-02-24 00:40:48,292 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 00:40:48,293 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 106 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:48,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 474 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:48,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2022-02-24 00:40:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1299. [2022-02-24 00:40:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.3763523956723338) internal successors, (1781), 1294 states have internal predecessors, (1781), 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 00:40:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1785 transitions. [2022-02-24 00:40:48,320 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1785 transitions. Word has length 241 [2022-02-24 00:40:48,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:48,320 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1785 transitions. [2022-02-24 00:40:48,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1785 transitions. [2022-02-24 00:40:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-24 00:40:48,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:48,322 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 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 00:40:48,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:40:48,322 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:48,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:48,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1424455945, now seen corresponding path program 1 times [2022-02-24 00:40:48,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:48,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852467314] [2022-02-24 00:40:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:48,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-02-24 00:40:48,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:48,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852467314] [2022-02-24 00:40:48,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852467314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:48,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:48,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:48,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347116238] [2022-02-24 00:40:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:48,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:48,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:48,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:48,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:48,487 INFO L87 Difference]: Start difference. First operand 1299 states and 1785 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 00:40:50,506 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 00:40:50,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:50,826 INFO L93 Difference]: Finished difference Result 2744 states and 3765 transitions. [2022-02-24 00:40:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:50,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 244 [2022-02-24 00:40:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:50,829 INFO L225 Difference]: With dead ends: 2744 [2022-02-24 00:40:50,829 INFO L226 Difference]: Without dead ends: 1461 [2022-02-24 00:40:50,830 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 00:40:50,831 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:50,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 482 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-02-24 00:40:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1415. [2022-02-24 00:40:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1410 states have (on average 1.376595744680851) internal successors, (1941), 1410 states have internal predecessors, (1941), 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 00:40:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1945 transitions. [2022-02-24 00:40:50,866 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1945 transitions. Word has length 244 [2022-02-24 00:40:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:50,867 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 1945 transitions. [2022-02-24 00:40:50,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 00:40:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1945 transitions. [2022-02-24 00:40:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-24 00:40:50,870 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:50,870 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 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 00:40:50,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:40:50,870 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:50,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:50,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1739724726, now seen corresponding path program 1 times [2022-02-24 00:40:50,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:50,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798536073] [2022-02-24 00:40:50,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:50,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-02-24 00:40:51,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:51,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798536073] [2022-02-24 00:40:51,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798536073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:51,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:51,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:51,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764076209] [2022-02-24 00:40:51,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:51,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:51,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:51,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:51,079 INFO L87 Difference]: Start difference. First operand 1415 states and 1945 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 00:40:53,087 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 00:40:53,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:53,437 INFO L93 Difference]: Finished difference Result 3000 states and 4129 transitions. [2022-02-24 00:40:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 244 [2022-02-24 00:40:53,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:53,439 INFO L225 Difference]: With dead ends: 3000 [2022-02-24 00:40:53,439 INFO L226 Difference]: Without dead ends: 1601 [2022-02-24 00:40:53,441 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 00:40:53,441 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 32 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:53,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 494 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:53,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-02-24 00:40:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1543. [2022-02-24 00:40:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1538 states have (on average 1.3842652795838752) internal successors, (2129), 1538 states have internal predecessors, (2129), 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 00:40:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2133 transitions. [2022-02-24 00:40:53,492 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2133 transitions. Word has length 244 [2022-02-24 00:40:53,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:53,493 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2133 transitions. [2022-02-24 00:40:53,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 00:40:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2133 transitions. [2022-02-24 00:40:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-24 00:40:53,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:53,495 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:40:53,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:40:53,495 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:53,495 INFO L85 PathProgramCache]: Analyzing trace with hash 556149849, now seen corresponding path program 1 times [2022-02-24 00:40:53,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:53,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019240158] [2022-02-24 00:40:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:53,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 303 proven. 264 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-02-24 00:40:55,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:55,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019240158] [2022-02-24 00:40:55,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019240158] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:40:55,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070495617] [2022-02-24 00:40:55,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:55,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:40:55,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:40:55,264 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 00:40:55,268 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 00:40:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:56,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 386 conjunts are in the unsatisfiable core [2022-02-24 00:40:56,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:40:57,132 INFO L190 IndexEqualityManager]: detected not equals via solver