/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:47:26,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:47:26,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:47:26,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:47:26,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:47:26,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:47:26,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:47:26,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:47:26,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:47:26,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:47:26,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:47:26,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:47:26,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:47:26,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:47:26,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:47:26,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:47:26,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:47:26,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:47:26,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:47:26,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:47:26,619 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:47:26,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:47:26,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:47:26,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:47:26,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:47:26,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:47:26,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:47:26,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:47:26,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:47:26,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:47:26,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:47:26,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:47:26,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:47:26,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:47:26,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:47:26,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:47:26,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:47:26,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:47:26,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:47:26,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:47:26,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:47:26,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:47:26,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:47:26,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:47:26,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:47:26,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:47:26,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:47:26,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:47:26,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:47:26,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:47:26,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:47:26,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:47:26,645 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:47:26,645 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:47:26,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:47:26,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:47:26,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:47:26,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:47:26,813 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:47:26,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-03-17 18:47:26,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e7e969d/7774ee6d6b4d4d8592ac165c05462f8b/FLAG42de1fdfc [2022-03-17 18:47:27,313 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:47:27,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-03-17 18:47:27,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e7e969d/7774ee6d6b4d4d8592ac165c05462f8b/FLAG42de1fdfc [2022-03-17 18:47:27,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e7e969d/7774ee6d6b4d4d8592ac165c05462f8b [2022-03-17 18:47:27,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:47:27,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:47:27,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:47:27,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:47:27,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:47:27,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:47:27" (1/1) ... [2022-03-17 18:47:27,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636dc3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:27, skipping insertion in model container [2022-03-17 18:47:27,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:47:27" (1/1) ... [2022-03-17 18:47:27,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:47:27,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:47:28,020 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.03.i.cil-2.c[65397,65410] [2022-03-17 18:47:28,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:47:28,034 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:47:28,138 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.03.i.cil-2.c[65397,65410] [2022-03-17 18:47:28,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:47:28,157 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:47:28,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28 WrapperNode [2022-03-17 18:47:28,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:47:28,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:47:28,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:47:28,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:47:28,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:47:28,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:47:28,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:47:28,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:47:28,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (1/1) ... [2022-03-17 18:47:28,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:47:28,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:47:28,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:47:28,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:47:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:47:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:47:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:47:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:47:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:47:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:47:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:47:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:47:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:47:28,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:47:28,506 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:47:28,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:47:29,847 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:47:30,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-17 18:47:30,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-17 18:47:30,109 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:47:30,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:47:30,116 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:47:30,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:47:30 BoogieIcfgContainer [2022-03-17 18:47:30,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:47:30,118 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:47:30,118 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:47:30,119 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:47:30,121 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:47:30" (1/1) ... [2022-03-17 18:47:30,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:47:30 BasicIcfg [2022-03-17 18:47:30,158 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:47:30,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:47:30,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:47:30,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:47:30,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:47:27" (1/4) ... [2022-03-17 18:47:30,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2862eca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:47:30, skipping insertion in model container [2022-03-17 18:47:30,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:47:28" (2/4) ... [2022-03-17 18:47:30,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2862eca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:47:30, skipping insertion in model container [2022-03-17 18:47:30,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:47:30" (3/4) ... [2022-03-17 18:47:30,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2862eca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:47:30, skipping insertion in model container [2022-03-17 18:47:30,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:47:30" (4/4) ... [2022-03-17 18:47:30,168 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.cJordan [2022-03-17 18:47:30,174 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:47:30,175 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:47:30,212 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:47:30,217 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:47:30,217 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:47:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:47:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-17 18:47:30,244 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:30,244 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:30,245 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:30,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1582464962, now seen corresponding path program 1 times [2022-03-17 18:47:30,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:30,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965887489] [2022-03-17 18:47:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:30,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:47:30,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:30,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965887489] [2022-03-17 18:47:30,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965887489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:30,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:30,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:30,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469340560] [2022-03-17 18:47:30,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:30,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:30,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:30,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:30,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:30,662 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:32,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:32,996 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-03-17 18:47:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:32,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-17 18:47:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:33,003 INFO L225 Difference]: With dead ends: 142 [2022-03-17 18:47:33,003 INFO L226 Difference]: Without dead ends: 122 [2022-03-17 18:47:33,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:33,006 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:33,006 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:47:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-17 18:47:33,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-17 18:47:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-17 18:47:33,056 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-17 18:47:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:33,056 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-17 18:47:33,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-17 18:47:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-17 18:47:33,057 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:33,058 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:33,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:47:33,058 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 826783867, now seen corresponding path program 1 times [2022-03-17 18:47:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:33,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8515453] [2022-03-17 18:47:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:33,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:33,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:33,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8515453] [2022-03-17 18:47:33,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8515453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:33,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:33,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:47:33,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648241948] [2022-03-17 18:47:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:33,289 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:47:33,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:47:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:33,295 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:35,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:35,531 INFO L93 Difference]: Finished difference Result 222 states and 326 transitions. [2022-03-17 18:47:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:47:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-17 18:47:35,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:35,534 INFO L225 Difference]: With dead ends: 222 [2022-03-17 18:47:35,534 INFO L226 Difference]: Without dead ends: 222 [2022-03-17 18:47:35,534 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:35,535 INFO L912 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 [2022-03-17 18:47:35,535 INFO L913 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] [2022-03-17 18:47:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-17 18:47:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-03-17 18:47:35,553 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) [2022-03-17 18:47:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-03-17 18:47:35,554 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-03-17 18:47:35,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:35,555 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-03-17 18:47:35,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-03-17 18:47:35,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:47:35,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:35,556 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:35,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:47:35,557 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:35,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2124287227, now seen corresponding path program 1 times [2022-03-17 18:47:35,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:35,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647843452] [2022-03-17 18:47:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:35,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:35,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647843452] [2022-03-17 18:47:35,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647843452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:35,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:35,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:35,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597246456] [2022-03-17 18:47:35,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:35,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:35,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:35,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:35,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:35,776 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) [2022-03-17 18:47:37,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:38,210 INFO L93 Difference]: Finished difference Result 258 states and 380 transitions. [2022-03-17 18:47:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-17 18:47:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:38,212 INFO L225 Difference]: With dead ends: 258 [2022-03-17 18:47:38,212 INFO L226 Difference]: Without dead ends: 258 [2022-03-17 18:47:38,213 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:38,214 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:38,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:47:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-17 18:47:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2022-03-17 18:47:38,222 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) [2022-03-17 18:47:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-03-17 18:47:38,224 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-03-17 18:47:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:38,224 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-03-17 18:47:38,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:38,224 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-03-17 18:47:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:47:38,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:38,226 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:38,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:47:38,227 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:38,232 INFO L85 PathProgramCache]: Analyzing trace with hash -11487624, now seen corresponding path program 2 times [2022-03-17 18:47:38,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:38,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152581821] [2022-03-17 18:47:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:38,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:38,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:38,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152581821] [2022-03-17 18:47:38,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152581821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:38,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:38,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785995077] [2022-03-17 18:47:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:38,447 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:38,449 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) [2022-03-17 18:47:40,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:40,921 INFO L93 Difference]: Finished difference Result 257 states and 378 transitions. [2022-03-17 18:47:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:40,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-17 18:47:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:40,923 INFO L225 Difference]: With dead ends: 257 [2022-03-17 18:47:40,923 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 18:47:40,923 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:40,924 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 39 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:40,924 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 486 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:47:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 18:47:40,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-03-17 18:47:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4936170212765958) internal successors, (351), 235 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:40,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 355 transitions. [2022-03-17 18:47:40,934 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 355 transitions. Word has length 73 [2022-03-17 18:47:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:40,935 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 355 transitions. [2022-03-17 18:47:40,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 355 transitions. [2022-03-17 18:47:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-17 18:47:40,937 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:40,937 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:40,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:47:40,937 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash 350628440, now seen corresponding path program 1 times [2022-03-17 18:47:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:40,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785472642] [2022-03-17 18:47:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:41,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:41,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785472642] [2022-03-17 18:47:41,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785472642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:41,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:41,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987452270] [2022-03-17 18:47:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:41,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:41,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:41,140 INFO L87 Difference]: Start difference. First operand 240 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:43,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:43,545 INFO L93 Difference]: Finished difference Result 423 states and 628 transitions. [2022-03-17 18:47:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-17 18:47:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:43,547 INFO L225 Difference]: With dead ends: 423 [2022-03-17 18:47:43,547 INFO L226 Difference]: Without dead ends: 423 [2022-03-17 18:47:43,547 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:43,548 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:43,548 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:47:43,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-17 18:47:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 264. [2022-03-17 18:47:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4903474903474903) internal successors, (386), 259 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 390 transitions. [2022-03-17 18:47:43,557 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 390 transitions. Word has length 73 [2022-03-17 18:47:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:43,557 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 390 transitions. [2022-03-17 18:47:43,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 390 transitions. [2022-03-17 18:47:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 18:47:43,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:43,559 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:43,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:47:43,559 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:43,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash -99560265, now seen corresponding path program 1 times [2022-03-17 18:47:43,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:43,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824409784] [2022-03-17 18:47:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:43,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824409784] [2022-03-17 18:47:43,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824409784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:43,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:43,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294320384] [2022-03-17 18:47:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:43,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:43,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:43,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:43,726 INFO L87 Difference]: Start difference. First operand 264 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:45,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:46,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:46,110 INFO L93 Difference]: Finished difference Result 423 states and 625 transitions. [2022-03-17 18:47:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:46,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-17 18:47:46,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:46,112 INFO L225 Difference]: With dead ends: 423 [2022-03-17 18:47:46,112 INFO L226 Difference]: Without dead ends: 423 [2022-03-17 18:47:46,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:46,113 INFO L912 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:46,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:47:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-17 18:47:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 266. [2022-03-17 18:47:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-03-17 18:47:46,120 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 74 [2022-03-17 18:47:46,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:46,120 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-03-17 18:47:46,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-03-17 18:47:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 18:47:46,122 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:46,122 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:46,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:47:46,123 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:46,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:46,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1125243724, now seen corresponding path program 1 times [2022-03-17 18:47:46,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:46,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803755274] [2022-03-17 18:47:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:46,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:46,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803755274] [2022-03-17 18:47:46,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803755274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:46,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:46,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:46,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685959394] [2022-03-17 18:47:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:46,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:46,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:46,258 INFO L87 Difference]: Start difference. First operand 266 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:48,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:48,564 INFO L93 Difference]: Finished difference Result 283 states and 413 transitions. [2022-03-17 18:47:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:48,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-17 18:47:48,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:48,566 INFO L225 Difference]: With dead ends: 283 [2022-03-17 18:47:48,566 INFO L226 Difference]: Without dead ends: 283 [2022-03-17 18:47:48,566 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:48,567 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 33 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:48,567 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:47:48,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-17 18:47:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 266. [2022-03-17 18:47:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4789272030651341) internal successors, (386), 261 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:48,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 390 transitions. [2022-03-17 18:47:48,571 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 390 transitions. Word has length 75 [2022-03-17 18:47:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:48,571 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 390 transitions. [2022-03-17 18:47:48,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 390 transitions. [2022-03-17 18:47:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-17 18:47:48,572 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:48,572 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:48,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:47:48,572 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:48,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1472255796, now seen corresponding path program 1 times [2022-03-17 18:47:48,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:48,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929962419] [2022-03-17 18:47:48,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:48,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:48,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929962419] [2022-03-17 18:47:48,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929962419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:48,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:48,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:47:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282074736] [2022-03-17 18:47:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:48,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:47:48,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:48,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:47:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:47:48,712 INFO L87 Difference]: Start difference. First operand 266 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) [2022-03-17 18:47:50,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:51,580 INFO L93 Difference]: Finished difference Result 423 states and 621 transitions. [2022-03-17 18:47:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:47:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-17 18:47:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:51,582 INFO L225 Difference]: With dead ends: 423 [2022-03-17 18:47:51,582 INFO L226 Difference]: Without dead ends: 423 [2022-03-17 18:47:51,582 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:47:51,583 INFO L912 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 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, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:51,583 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:47:51,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-17 18:47:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 270. [2022-03-17 18:47:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4754716981132074) internal successors, (391), 265 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2022-03-17 18:47:51,588 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 76 [2022-03-17 18:47:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:51,588 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2022-03-17 18:47:51,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2022-03-17 18:47:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 18:47:51,588 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:51,588 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:51,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:47:51,589 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:51,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash -928330680, now seen corresponding path program 1 times [2022-03-17 18:47:51,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:51,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777720061] [2022-03-17 18:47:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:51,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-17 18:47:51,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:51,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777720061] [2022-03-17 18:47:51,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777720061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:51,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:51,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:47:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369761334] [2022-03-17 18:47:51,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:51,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:47:51,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:51,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:47:51,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:51,737 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:53,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:54,364 INFO L93 Difference]: Finished difference Result 405 states and 592 transitions. [2022-03-17 18:47:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:47:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-17 18:47:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:54,365 INFO L225 Difference]: With dead ends: 405 [2022-03-17 18:47:54,365 INFO L226 Difference]: Without dead ends: 405 [2022-03-17 18:47:54,366 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:54,366 INFO L912 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:54,366 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:47:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-17 18:47:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-03-17 18:47:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 1.47) internal successors, (588), 400 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 592 transitions. [2022-03-17 18:47:54,372 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 592 transitions. Word has length 77 [2022-03-17 18:47:54,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:54,372 INFO L478 AbstractCegarLoop]: Abstraction has 405 states and 592 transitions. [2022-03-17 18:47:54,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 592 transitions. [2022-03-17 18:47:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 18:47:54,373 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:54,373 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:54,373 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:47:54,373 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:54,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1739136347, now seen corresponding path program 1 times [2022-03-17 18:47:54,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:54,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504232012] [2022-03-17 18:47:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 18:47:54,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:54,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504232012] [2022-03-17 18:47:54,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504232012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:54,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:54,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:47:54,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504929324] [2022-03-17 18:47:54,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:54,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:47:54,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:54,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:47:54,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:54,484 INFO L87 Difference]: Start difference. First operand 405 states and 592 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:56,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:56,754 INFO L93 Difference]: Finished difference Result 429 states and 624 transitions. [2022-03-17 18:47:56,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:47:56,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-17 18:47:56,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:56,757 INFO L225 Difference]: With dead ends: 429 [2022-03-17 18:47:56,757 INFO L226 Difference]: Without dead ends: 429 [2022-03-17 18:47:56,757 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:56,758 INFO L912 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:56,758 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:47:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-17 18:47:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-03-17 18:47:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4622641509433962) internal successors, (620), 424 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:56,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 624 transitions. [2022-03-17 18:47:56,766 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 624 transitions. Word has length 78 [2022-03-17 18:47:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:56,767 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 624 transitions. [2022-03-17 18:47:56,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:56,767 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 624 transitions. [2022-03-17 18:47:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 18:47:56,768 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:56,768 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:56,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:47:56,768 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:56,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:56,769 INFO L85 PathProgramCache]: Analyzing trace with hash -820885621, now seen corresponding path program 1 times [2022-03-17 18:47:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:56,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004782947] [2022-03-17 18:47:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:56,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 18:47:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:56,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004782947] [2022-03-17 18:47:56,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004782947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:56,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:56,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:47:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58533738] [2022-03-17 18:47:56,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:56,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:47:56,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:56,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:47:56,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:56,923 INFO L87 Difference]: Start difference. First operand 429 states and 624 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:58,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:47:59,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:47:59,249 INFO L93 Difference]: Finished difference Result 563 states and 820 transitions. [2022-03-17 18:47:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:47:59,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-17 18:47:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:47:59,251 INFO L225 Difference]: With dead ends: 563 [2022-03-17 18:47:59,251 INFO L226 Difference]: Without dead ends: 563 [2022-03-17 18:47:59,251 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:59,252 INFO L912 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:47:59,252 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:47:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-17 18:47:59,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-03-17 18:47:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4623655913978495) internal successors, (816), 558 states have internal predecessors, (816), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 820 transitions. [2022-03-17 18:47:59,260 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 820 transitions. Word has length 97 [2022-03-17 18:47:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:47:59,260 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 820 transitions. [2022-03-17 18:47:59,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:47:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 820 transitions. [2022-03-17 18:47:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 18:47:59,263 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:47:59,263 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:47:59,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:47:59,263 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:47:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:47:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1372430939, now seen corresponding path program 1 times [2022-03-17 18:47:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:47:59,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011754062] [2022-03-17 18:47:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:47:59,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:47:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:47:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:47:59,436 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 18:47:59,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:47:59,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011754062] [2022-03-17 18:47:59,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011754062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:47:59,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:47:59,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:47:59,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934480249] [2022-03-17 18:47:59,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:47:59,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:47:59,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:47:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:47:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:47:59,438 INFO L87 Difference]: Start difference. First operand 563 states and 820 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:01,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:01,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:01,769 INFO L93 Difference]: Finished difference Result 696 states and 1014 transitions. [2022-03-17 18:48:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:48:01,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 18:48:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:01,771 INFO L225 Difference]: With dead ends: 696 [2022-03-17 18:48:01,771 INFO L226 Difference]: Without dead ends: 696 [2022-03-17 18:48:01,771 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:48:01,772 INFO L912 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:01,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 474 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-03-17 18:48:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2022-03-17 18:48:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 691 states have (on average 1.4616497829232995) internal successors, (1010), 691 states have internal predecessors, (1010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1014 transitions. [2022-03-17 18:48:01,781 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1014 transitions. Word has length 118 [2022-03-17 18:48:01,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:01,781 INFO L478 AbstractCegarLoop]: Abstraction has 696 states and 1014 transitions. [2022-03-17 18:48:01,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1014 transitions. [2022-03-17 18:48:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-17 18:48:01,783 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:01,783 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-03-17 18:48:01,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:48:01,783 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1555623355, now seen corresponding path program 1 times [2022-03-17 18:48:01,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:01,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403058459] [2022-03-17 18:48:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:01,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:48:01,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:01,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403058459] [2022-03-17 18:48:01,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403058459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:01,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:01,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728958457] [2022-03-17 18:48:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:01,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:01,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:01,951 INFO L87 Difference]: Start difference. First operand 696 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:03,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:04,314 INFO L93 Difference]: Finished difference Result 1138 states and 1653 transitions. [2022-03-17 18:48:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 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 137 [2022-03-17 18:48:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:04,318 INFO L225 Difference]: With dead ends: 1138 [2022-03-17 18:48:04,318 INFO L226 Difference]: Without dead ends: 1138 [2022-03-17 18:48:04,318 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:04,319 INFO L912 BasicCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 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 [2022-03-17 18:48:04,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-03-17 18:48:04,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 785. [2022-03-17 18:48:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 780 states have (on average 1.4705128205128206) internal successors, (1147), 780 states have internal predecessors, (1147), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1151 transitions. [2022-03-17 18:48:04,353 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1151 transitions. Word has length 137 [2022-03-17 18:48:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:04,353 INFO L478 AbstractCegarLoop]: Abstraction has 785 states and 1151 transitions. [2022-03-17 18:48:04,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1151 transitions. [2022-03-17 18:48:04,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-17 18:48:04,354 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:04,354 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2022-03-17 18:48:04,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:48:04,355 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1531425766, now seen corresponding path program 1 times [2022-03-17 18:48:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:04,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585059548] [2022-03-17 18:48:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:04,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 157 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-17 18:48:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:04,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585059548] [2022-03-17 18:48:04,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585059548] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:04,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001902646] [2022-03-17 18:48:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:04,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:48:04,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:48:04,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:48:04,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:48:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:05,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:48:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:48:05,272 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:48:05,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:48:05,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:48:05,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:05,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:05,493 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-03-17 18:48:05,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 21 [2022-03-17 18:48:05,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:48:05,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:48:05,594 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:48:05,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:05,698 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:48:05,716 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:48:05,717 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:48:05,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 66 proven. 50 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-17 18:48:05,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:48:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-17 18:48:05,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001902646] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:05,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:48:05,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:48:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390168641] [2022-03-17 18:48:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:05,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:48:05,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:05,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:48:05,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:48:05,908 INFO L87 Difference]: Start difference. First operand 785 states and 1151 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:07,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:08,208 INFO L93 Difference]: Finished difference Result 1248 states and 1813 transitions. [2022-03-17 18:48:08,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:48:08,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 137 [2022-03-17 18:48:08,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:08,213 INFO L225 Difference]: With dead ends: 1248 [2022-03-17 18:48:08,213 INFO L226 Difference]: Without dead ends: 1248 [2022-03-17 18:48:08,213 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:48:08,213 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 101 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:08,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 549 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-03-17 18:48:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 915. [2022-03-17 18:48:08,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 910 states have (on average 1.4802197802197803) internal successors, (1347), 910 states have internal predecessors, (1347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:08,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1351 transitions. [2022-03-17 18:48:08,229 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1351 transitions. Word has length 137 [2022-03-17 18:48:08,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:08,229 INFO L478 AbstractCegarLoop]: Abstraction has 915 states and 1351 transitions. [2022-03-17 18:48:08,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1351 transitions. [2022-03-17 18:48:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-17 18:48:08,231 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:08,231 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-03-17 18:48:08,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 18:48:08,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-17 18:48:08,456 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1598432519, now seen corresponding path program 1 times [2022-03-17 18:48:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:08,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366643282] [2022-03-17 18:48:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:08,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 18:48:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:08,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366643282] [2022-03-17 18:48:08,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366643282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:08,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:08,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:08,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937210033] [2022-03-17 18:48:08,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:08,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:08,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:08,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:08,642 INFO L87 Difference]: Start difference. First operand 915 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:10,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:11,045 INFO L93 Difference]: Finished difference Result 1288 states and 1879 transitions. [2022-03-17 18:48:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 137 [2022-03-17 18:48:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:11,049 INFO L225 Difference]: With dead ends: 1288 [2022-03-17 18:48:11,049 INFO L226 Difference]: Without dead ends: 1288 [2022-03-17 18:48:11,050 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:11,050 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:11,050 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:11,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-03-17 18:48:11,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 927. [2022-03-17 18:48:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 922 states have (on average 1.4718004338394794) internal successors, (1357), 922 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1361 transitions. [2022-03-17 18:48:11,067 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1361 transitions. Word has length 137 [2022-03-17 18:48:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:11,067 INFO L478 AbstractCegarLoop]: Abstraction has 927 states and 1361 transitions. [2022-03-17 18:48:11,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1361 transitions. [2022-03-17 18:48:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-17 18:48:11,068 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:11,068 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 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] [2022-03-17 18:48:11,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:48:11,069 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:11,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash 62374513, now seen corresponding path program 1 times [2022-03-17 18:48:11,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:11,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303661340] [2022-03-17 18:48:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 18:48:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:11,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303661340] [2022-03-17 18:48:11,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303661340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:11,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:11,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255199699] [2022-03-17 18:48:11,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:11,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:11,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:11,219 INFO L87 Difference]: Start difference. First operand 927 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:13,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:13,629 INFO L93 Difference]: Finished difference Result 1283 states and 1859 transitions. [2022-03-17 18:48:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 138 [2022-03-17 18:48:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:13,632 INFO L225 Difference]: With dead ends: 1283 [2022-03-17 18:48:13,633 INFO L226 Difference]: Without dead ends: 1283 [2022-03-17 18:48:13,633 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:13,633 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:13,634 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-17 18:48:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 931. [2022-03-17 18:48:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.458963282937365) internal successors, (1351), 926 states have internal predecessors, (1351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1355 transitions. [2022-03-17 18:48:13,653 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1355 transitions. Word has length 138 [2022-03-17 18:48:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:13,653 INFO L478 AbstractCegarLoop]: Abstraction has 931 states and 1355 transitions. [2022-03-17 18:48:13,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1355 transitions. [2022-03-17 18:48:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:48:13,655 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:13,655 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:13,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:48:13,656 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash -879760050, now seen corresponding path program 1 times [2022-03-17 18:48:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023015344] [2022-03-17 18:48:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:13,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-17 18:48:13,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:13,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023015344] [2022-03-17 18:48:13,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023015344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:13,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:13,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:13,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50602369] [2022-03-17 18:48:13,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:13,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:13,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:13,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:13,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:13,825 INFO L87 Difference]: Start difference. First operand 931 states and 1355 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:15,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:16,180 INFO L93 Difference]: Finished difference Result 1383 states and 1985 transitions. [2022-03-17 18:48:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 18:48:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:16,184 INFO L225 Difference]: With dead ends: 1383 [2022-03-17 18:48:16,184 INFO L226 Difference]: Without dead ends: 1383 [2022-03-17 18:48:16,185 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:16,185 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 111 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:16,185 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 494 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-03-17 18:48:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1011. [2022-03-17 18:48:16,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1006 states have (on average 1.4433399602385686) internal successors, (1452), 1006 states have internal predecessors, (1452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1456 transitions. [2022-03-17 18:48:16,219 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1456 transitions. Word has length 152 [2022-03-17 18:48:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:16,219 INFO L478 AbstractCegarLoop]: Abstraction has 1011 states and 1456 transitions. [2022-03-17 18:48:16,219 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1456 transitions. [2022-03-17 18:48:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 18:48:16,221 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:16,221 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:16,221 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:48:16,221 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:16,221 INFO L85 PathProgramCache]: Analyzing trace with hash 456220279, now seen corresponding path program 1 times [2022-03-17 18:48:16,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:16,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835923880] [2022-03-17 18:48:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:16,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-17 18:48:16,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:16,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835923880] [2022-03-17 18:48:16,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835923880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:16,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:16,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:16,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42425580] [2022-03-17 18:48:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:16,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:16,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:16,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:16,394 INFO L87 Difference]: Start difference. First operand 1011 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:18,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:18,766 INFO L93 Difference]: Finished difference Result 1346 states and 1933 transitions. [2022-03-17 18:48:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:18,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 18:48:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:18,770 INFO L225 Difference]: With dead ends: 1346 [2022-03-17 18:48:18,770 INFO L226 Difference]: Without dead ends: 1346 [2022-03-17 18:48:18,770 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:18,770 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 89 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:18,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 553 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-03-17 18:48:18,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1079. [2022-03-17 18:48:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.441340782122905) internal successors, (1548), 1074 states have internal predecessors, (1548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1552 transitions. [2022-03-17 18:48:18,784 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1552 transitions. Word has length 153 [2022-03-17 18:48:18,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:18,784 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1552 transitions. [2022-03-17 18:48:18,784 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1552 transitions. [2022-03-17 18:48:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 18:48:18,786 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:18,786 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:18,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:48:18,786 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash 428982347, now seen corresponding path program 2 times [2022-03-17 18:48:18,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:18,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297655879] [2022-03-17 18:48:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 18:48:18,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:18,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297655879] [2022-03-17 18:48:18,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297655879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:18,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:18,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:18,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573462108] [2022-03-17 18:48:18,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:18,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:18,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:18,962 INFO L87 Difference]: Start difference. First operand 1079 states and 1552 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) [2022-03-17 18:48:20,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:21,328 INFO L93 Difference]: Finished difference Result 1342 states and 1925 transitions. [2022-03-17 18:48:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:21,328 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 166 [2022-03-17 18:48:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:21,331 INFO L225 Difference]: With dead ends: 1342 [2022-03-17 18:48:21,331 INFO L226 Difference]: Without dead ends: 1342 [2022-03-17 18:48:21,332 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:21,332 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:21,333 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 551 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:21,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-03-17 18:48:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1079. [2022-03-17 18:48:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4376163873370578) internal successors, (1544), 1074 states have internal predecessors, (1544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1548 transitions. [2022-03-17 18:48:21,392 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1548 transitions. Word has length 166 [2022-03-17 18:48:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:21,392 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1548 transitions. [2022-03-17 18:48:21,393 INFO L479 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) [2022-03-17 18:48:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1548 transitions. [2022-03-17 18:48:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-17 18:48:21,394 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:21,394 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:21,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:48:21,395 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2142134073, now seen corresponding path program 1 times [2022-03-17 18:48:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:21,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773453866] [2022-03-17 18:48:21,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:21,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:21,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 18:48:21,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:21,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773453866] [2022-03-17 18:48:21,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773453866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:21,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:21,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:21,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384876482] [2022-03-17 18:48:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:21,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:21,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:21,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:21,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:21,530 INFO L87 Difference]: Start difference. First operand 1079 states and 1548 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) [2022-03-17 18:48:23,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:23,894 INFO L93 Difference]: Finished difference Result 1431 states and 2029 transitions. [2022-03-17 18:48:23,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:23,895 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 168 [2022-03-17 18:48:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:23,898 INFO L225 Difference]: With dead ends: 1431 [2022-03-17 18:48:23,898 INFO L226 Difference]: Without dead ends: 1431 [2022-03-17 18:48:23,899 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:23,904 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:23,905 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:48:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2022-03-17 18:48:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1079. [2022-03-17 18:48:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4162011173184357) internal successors, (1521), 1074 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1525 transitions. [2022-03-17 18:48:23,930 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1525 transitions. Word has length 168 [2022-03-17 18:48:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:23,930 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1525 transitions. [2022-03-17 18:48:23,930 INFO L479 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) [2022-03-17 18:48:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1525 transitions. [2022-03-17 18:48:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 18:48:23,932 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:23,932 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:23,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:48:23,932 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1527681891, now seen corresponding path program 1 times [2022-03-17 18:48:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:23,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114596440] [2022-03-17 18:48:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 18:48:24,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:24,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114596440] [2022-03-17 18:48:24,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114596440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:24,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:24,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:24,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276727522] [2022-03-17 18:48:24,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:24,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:24,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:24,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:24,167 INFO L87 Difference]: Start difference. First operand 1079 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:26,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:26,509 INFO L93 Difference]: Finished difference Result 1426 states and 2013 transitions. [2022-03-17 18:48:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 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 [2022-03-17 18:48:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:26,513 INFO L225 Difference]: With dead ends: 1426 [2022-03-17 18:48:26,513 INFO L226 Difference]: Without dead ends: 1426 [2022-03-17 18:48:26,513 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:26,513 INFO L912 BasicCegarLoop]: 101 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:26,513 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-03-17 18:48:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1088. [2022-03-17 18:48:26,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1083 states have (on average 1.4118190212373039) internal successors, (1529), 1083 states have internal predecessors, (1529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1533 transitions. [2022-03-17 18:48:26,525 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1533 transitions. Word has length 172 [2022-03-17 18:48:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:26,526 INFO L478 AbstractCegarLoop]: Abstraction has 1088 states and 1533 transitions. [2022-03-17 18:48:26,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1533 transitions. [2022-03-17 18:48:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 18:48:26,527 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:26,528 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 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] [2022-03-17 18:48:26,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:48:26,528 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash -337729248, now seen corresponding path program 1 times [2022-03-17 18:48:26,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:26,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815161423] [2022-03-17 18:48:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-17 18:48:26,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815161423] [2022-03-17 18:48:26,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815161423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:26,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:26,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:26,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3133149] [2022-03-17 18:48:26,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:26,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:26,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:26,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:26,658 INFO L87 Difference]: Start difference. First operand 1088 states and 1533 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) [2022-03-17 18:48:28,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:28,952 INFO L93 Difference]: Finished difference Result 1142 states and 1596 transitions. [2022-03-17 18:48:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:28,952 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 173 [2022-03-17 18:48:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:28,955 INFO L225 Difference]: With dead ends: 1142 [2022-03-17 18:48:28,955 INFO L226 Difference]: Without dead ends: 1142 [2022-03-17 18:48:28,955 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:28,955 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:28,955 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 471 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-03-17 18:48:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1116. [2022-03-17 18:48:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4086408640864085) internal successors, (1565), 1111 states have internal predecessors, (1565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1569 transitions. [2022-03-17 18:48:28,966 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1569 transitions. Word has length 173 [2022-03-17 18:48:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:28,966 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1569 transitions. [2022-03-17 18:48:28,966 INFO L479 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) [2022-03-17 18:48:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1569 transitions. [2022-03-17 18:48:28,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 18:48:28,970 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:28,970 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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] [2022-03-17 18:48:28,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:48:28,970 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:28,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:28,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1191051994, now seen corresponding path program 1 times [2022-03-17 18:48:28,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:28,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027378183] [2022-03-17 18:48:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:28,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 105 proven. 5 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-03-17 18:48:29,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027378183] [2022-03-17 18:48:29,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027378183] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159464853] [2022-03-17 18:48:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:48:29,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:48:29,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:48:29,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:48:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:29,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:48:29,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:48:30,050 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:48:30,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:48:30,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:48:30,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:30,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:30,205 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 18:48:30,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:48:30,247 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:48:30,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:30,395 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:48:30,414 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:48:30,415 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:48:30,462 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 99 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-03-17 18:48:30,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:48:30,681 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:48:30,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159464853] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:30,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:48:30,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 13 [2022-03-17 18:48:30,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938669004] [2022-03-17 18:48:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:30,682 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:48:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:30,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:48:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-03-17 18:48:30,683 INFO L87 Difference]: Start difference. First operand 1116 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:32,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:32,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:32,937 INFO L93 Difference]: Finished difference Result 1559 states and 2184 transitions. [2022-03-17 18:48:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:48:32,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 175 [2022-03-17 18:48:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:32,944 INFO L225 Difference]: With dead ends: 1559 [2022-03-17 18:48:32,944 INFO L226 Difference]: Without dead ends: 1559 [2022-03-17 18:48:32,944 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:48:32,945 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 93 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:32,945 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 322 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:48:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2022-03-17 18:48:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1111. [2022-03-17 18:48:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1106 states have (on average 1.410488245931284) internal successors, (1560), 1106 states have internal predecessors, (1560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1564 transitions. [2022-03-17 18:48:32,958 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1564 transitions. Word has length 175 [2022-03-17 18:48:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:32,958 INFO L478 AbstractCegarLoop]: Abstraction has 1111 states and 1564 transitions. [2022-03-17 18:48:32,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1564 transitions. [2022-03-17 18:48:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 18:48:32,961 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:32,961 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:32,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 18:48:33,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-03-17 18:48:33,183 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 346064602, now seen corresponding path program 1 times [2022-03-17 18:48:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:33,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71467284] [2022-03-17 18:48:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:33,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 247 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-17 18:48:33,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:33,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71467284] [2022-03-17 18:48:33,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71467284] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:33,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971090891] [2022-03-17 18:48:33,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:33,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:48:33,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:48:33,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:48:33,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 18:48:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:34,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:48:34,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:48:34,313 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:48:34,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:48:34,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:48:34,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:34,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:48:34,399 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 18:48:34,410 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:48:34,439 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:48:34,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:34,605 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:48:34,625 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:48:34,625 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:48:34,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:48:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 99 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-03-17 18:48:34,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:48:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:48:34,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971090891] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:34,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:48:34,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:48:34,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212164298] [2022-03-17 18:48:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:34,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:48:34,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:48:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:48:34,886 INFO L87 Difference]: Start difference. First operand 1111 states and 1564 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:36,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:37,091 INFO L93 Difference]: Finished difference Result 1460 states and 2060 transitions. [2022-03-17 18:48:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:48:37,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 176 [2022-03-17 18:48:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:37,094 INFO L225 Difference]: With dead ends: 1460 [2022-03-17 18:48:37,094 INFO L226 Difference]: Without dead ends: 1460 [2022-03-17 18:48:37,095 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:48:37,095 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 71 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:37,095 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 497 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:48:37,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-03-17 18:48:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1241. [2022-03-17 18:48:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.4037216828478964) internal successors, (1735), 1236 states have internal predecessors, (1735), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1739 transitions. [2022-03-17 18:48:37,106 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1739 transitions. Word has length 176 [2022-03-17 18:48:37,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:37,106 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1739 transitions. [2022-03-17 18:48:37,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1739 transitions. [2022-03-17 18:48:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 18:48:37,108 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:37,108 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:48:37,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 18:48:37,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:48:37,323 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:37,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1731144741, now seen corresponding path program 1 times [2022-03-17 18:48:37,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:37,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118779639] [2022-03-17 18:48:37,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:48:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:37,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118779639] [2022-03-17 18:48:37,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118779639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:48:37,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:48:37,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:48:37,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195528258] [2022-03-17 18:48:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:48:37,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:48:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:48:37,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:48:37,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:48:37,513 INFO L87 Difference]: Start difference. First operand 1241 states and 1739 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:48:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:48:39,856 INFO L93 Difference]: Finished difference Result 1276 states and 1776 transitions. [2022-03-17 18:48:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:48:39,856 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 176 [2022-03-17 18:48:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:48:39,859 INFO L225 Difference]: With dead ends: 1276 [2022-03-17 18:48:39,859 INFO L226 Difference]: Without dead ends: 1276 [2022-03-17 18:48:39,859 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:48:39,860 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:48:39,861 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 333 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:48:39,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-03-17 18:48:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1241. [2022-03-17 18:48:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.4004854368932038) internal successors, (1731), 1236 states have internal predecessors, (1731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1735 transitions. [2022-03-17 18:48:39,909 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1735 transitions. Word has length 176 [2022-03-17 18:48:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:48:39,909 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1735 transitions. [2022-03-17 18:48:39,909 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:48:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1735 transitions. [2022-03-17 18:48:39,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-03-17 18:48:39,912 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:48:39,912 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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] [2022-03-17 18:48:39,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:48:39,913 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:48:39,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:48:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash -956609283, now seen corresponding path program 2 times [2022-03-17 18:48:39,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:48:39,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221940903] [2022-03-17 18:48:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:48:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:48:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:48:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:48:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 300 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-03-17 18:48:40,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:48:40,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221940903] [2022-03-17 18:48:40,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221940903] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:48:40,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29053833] [2022-03-17 18:48:40,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-17 18:48:40,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:48:40,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:48:40,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:48:40,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 18:49:36,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-17 18:49:36,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-17 18:49:36,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:49:36,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:49:36,716 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:49:36,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:49:36,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:49:36,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:36,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:36,826 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 18:49:36,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:49:36,856 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:49:36,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:36,958 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:49:36,978 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:49:36,979 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:49:36,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 162 proven. 66 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-03-17 18:49:37,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:49:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:49:37,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29053833] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:37,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:49:37,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:49:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853349463] [2022-03-17 18:49:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:37,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:49:37,232 INFO L87 Difference]: Start difference. First operand 1241 states and 1735 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:39,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:39,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:39,423 INFO L93 Difference]: Finished difference Result 1574 states and 2186 transitions. [2022-03-17 18:49:39,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:39,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 190 [2022-03-17 18:49:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:39,429 INFO L225 Difference]: With dead ends: 1574 [2022-03-17 18:49:39,429 INFO L226 Difference]: Without dead ends: 1574 [2022-03-17 18:49:39,429 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:49:39,430 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 107 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:39,430 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 306 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:49:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-03-17 18:49:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1241. [2022-03-17 18:49:39,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.3810679611650485) internal successors, (1707), 1236 states have internal predecessors, (1707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1711 transitions. [2022-03-17 18:49:39,449 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1711 transitions. Word has length 190 [2022-03-17 18:49:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:39,449 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1711 transitions. [2022-03-17 18:49:39,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:39,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1711 transitions. [2022-03-17 18:49:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-17 18:49:39,452 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:39,452 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:39,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 18:49:39,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-17 18:49:39,674 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:39,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1101207277, now seen corresponding path program 1 times [2022-03-17 18:49:39,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:39,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458374446] [2022-03-17 18:49:39,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:39,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-03-17 18:49:39,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458374446] [2022-03-17 18:49:39,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458374446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:39,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:39,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985601167] [2022-03-17 18:49:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:39,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:39,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:39,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:39,867 INFO L87 Difference]: Start difference. First operand 1241 states and 1711 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:41,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:42,152 INFO L93 Difference]: Finished difference Result 1380 states and 1882 transitions. [2022-03-17 18:49:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:42,152 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 194 [2022-03-17 18:49:42,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:42,155 INFO L225 Difference]: With dead ends: 1380 [2022-03-17 18:49:42,155 INFO L226 Difference]: Without dead ends: 1380 [2022-03-17 18:49:42,156 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:49:42,156 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 16 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:42,156 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 464 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:49:42,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-03-17 18:49:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1351. [2022-03-17 18:49:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1346 states have (on average 1.3722139673105498) internal successors, (1847), 1346 states have internal predecessors, (1847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1851 transitions. [2022-03-17 18:49:42,170 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1851 transitions. Word has length 194 [2022-03-17 18:49:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:42,171 INFO L478 AbstractCegarLoop]: Abstraction has 1351 states and 1851 transitions. [2022-03-17 18:49:42,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1851 transitions. [2022-03-17 18:49:42,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 18:49:42,175 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:42,176 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 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, 1] [2022-03-17 18:49:42,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:49:42,176 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash 55419958, now seen corresponding path program 1 times [2022-03-17 18:49:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:42,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128916182] [2022-03-17 18:49:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 352 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-03-17 18:49:42,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128916182] [2022-03-17 18:49:42,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128916182] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056199821] [2022-03-17 18:49:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:42,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:49:42,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:49:42,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:49:42,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 18:49:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:43,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:49:43,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:49:43,433 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:49:43,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:49:43,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:49:43,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:43,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:43,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 18:49:43,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-17 18:49:43,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:49:43,637 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:49:43,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:43,789 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:49:43,806 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:49:43,806 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:49:43,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 221 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-03-17 18:49:43,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:49:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:49:44,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056199821] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:44,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:49:44,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:49:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191291978] [2022-03-17 18:49:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:44,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:49:44,130 INFO L87 Difference]: Start difference. First operand 1351 states and 1851 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:46,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:46,352 INFO L93 Difference]: Finished difference Result 1580 states and 2173 transitions. [2022-03-17 18:49:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:46,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 196 [2022-03-17 18:49:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:46,356 INFO L225 Difference]: With dead ends: 1580 [2022-03-17 18:49:46,356 INFO L226 Difference]: Without dead ends: 1580 [2022-03-17 18:49:46,357 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:49:46,357 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 79 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:46,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 498 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:49:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-03-17 18:49:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1351. [2022-03-17 18:49:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1346 states have (on average 1.3655274888558693) internal successors, (1838), 1346 states have internal predecessors, (1838), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1842 transitions. [2022-03-17 18:49:46,370 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1842 transitions. Word has length 196 [2022-03-17 18:49:46,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:46,371 INFO L478 AbstractCegarLoop]: Abstraction has 1351 states and 1842 transitions. [2022-03-17 18:49:46,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:46,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1842 transitions. [2022-03-17 18:49:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-17 18:49:46,376 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:46,376 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:46,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 18:49:46,579 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-17 18:49:46,580 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1308035194, now seen corresponding path program 1 times [2022-03-17 18:49:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939645030] [2022-03-17 18:49:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 353 proven. 1 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-03-17 18:49:46,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:46,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939645030] [2022-03-17 18:49:46,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939645030] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:46,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486584300] [2022-03-17 18:49:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:46,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:49:46,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:49:46,838 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:49:46,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 18:49:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:47,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1625 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 18:49:47,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:49:48,040 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:49:48,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:49:48,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:49:48,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:48,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:48,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:49:48,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:49:48,343 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:49:48,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:48,465 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:49:48,479 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:49:48,480 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 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:49:48,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 223 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-03-17 18:49:48,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:49:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-17 18:49:48,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486584300] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:48,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:49:48,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:49:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353886351] [2022-03-17 18:49:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:48,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:48,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:49:48,745 INFO L87 Difference]: Start difference. First operand 1351 states and 1842 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:50,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:50,981 INFO L93 Difference]: Finished difference Result 1566 states and 2149 transitions. [2022-03-17 18:49:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:50,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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 197 [2022-03-17 18:49:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:50,993 INFO L225 Difference]: With dead ends: 1566 [2022-03-17 18:49:50,993 INFO L226 Difference]: Without dead ends: 1566 [2022-03-17 18:49:50,994 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:49:50,997 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 74 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:50,998 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 494 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:49:50,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-17 18:49:51,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1351. [2022-03-17 18:49:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1346 states have (on average 1.3588410104011888) internal successors, (1829), 1346 states have internal predecessors, (1829), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1833 transitions. [2022-03-17 18:49:51,008 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1833 transitions. Word has length 197 [2022-03-17 18:49:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:51,009 INFO L478 AbstractCegarLoop]: Abstraction has 1351 states and 1833 transitions. [2022-03-17 18:49:51,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1833 transitions. [2022-03-17 18:49:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-17 18:49:51,011 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:51,011 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:51,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-17 18:49:51,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-17 18:49:51,226 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:51,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1459464778, now seen corresponding path program 1 times [2022-03-17 18:49:51,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:51,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660863696] [2022-03-17 18:49:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:51,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 350 proven. 1 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-03-17 18:49:51,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:51,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660863696] [2022-03-17 18:49:51,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660863696] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:51,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099090416] [2022-03-17 18:49:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:51,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:49:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:49:51,445 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:49:51,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-17 18:49:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:52,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-17 18:49:52,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:49:52,761 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-17 18:49:52,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-17 18:49:52,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-17 18:49:52,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:52,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-17 18:49:52,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-17 18:49:52,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-17 18:49:52,913 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:49:52,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:53,009 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:49:53,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:49:53,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:49:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 324 proven. 50 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-03-17 18:49:53,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:49:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-03-17 18:49:53,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099090416] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:49:53,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:49:53,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-03-17 18:49:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533292060] [2022-03-17 18:49:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:53,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:49:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:49:53,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:49:53,338 INFO L87 Difference]: Start difference. First operand 1351 states and 1833 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:49:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:55,527 INFO L93 Difference]: Finished difference Result 1413 states and 1910 transitions. [2022-03-17 18:49:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:49:55,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2022-03-17 18:49:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:55,529 INFO L225 Difference]: With dead ends: 1413 [2022-03-17 18:49:55,530 INFO L226 Difference]: Without dead ends: 1413 [2022-03-17 18:49:55,530 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:49:55,530 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 106 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:55,530 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 480 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:49:55,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-17 18:49:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1129. [2022-03-17 18:49:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1124 states have (on average 1.335409252669039) internal successors, (1501), 1124 states have internal predecessors, (1501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1505 transitions. [2022-03-17 18:49:55,544 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1505 transitions. Word has length 206 [2022-03-17 18:49:55,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:55,573 INFO L478 AbstractCegarLoop]: Abstraction has 1129 states and 1505 transitions. [2022-03-17 18:49:55,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1505 transitions. [2022-03-17 18:49:55,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-03-17 18:49:55,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:55,576 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:55,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-17 18:49:55,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:49:55,788 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:55,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 320227841, now seen corresponding path program 1 times [2022-03-17 18:49:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:55,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935614466] [2022-03-17 18:49:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:55,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-17 18:49:55,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935614466] [2022-03-17 18:49:55,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935614466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:55,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:55,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119637897] [2022-03-17 18:49:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:55,985 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:55,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:55,985 INFO L87 Difference]: Start difference. First operand 1129 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,003 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 [] [2022-03-17 18:49:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:49:58,384 INFO L93 Difference]: Finished difference Result 1245 states and 1645 transitions. [2022-03-17 18:49:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:49:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-03-17 18:49:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:49:58,386 INFO L225 Difference]: With dead ends: 1245 [2022-03-17 18:49:58,386 INFO L226 Difference]: Without dead ends: 1245 [2022-03-17 18:49:58,386 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:49:58,387 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 12 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:49:58,387 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 456 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:49:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-03-17 18:49:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1233. [2022-03-17 18:49:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1228 states have (on average 1.3232899022801303) internal successors, (1625), 1228 states have internal predecessors, (1625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1629 transitions. [2022-03-17 18:49:58,407 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1629 transitions. Word has length 226 [2022-03-17 18:49:58,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:49:58,407 INFO L478 AbstractCegarLoop]: Abstraction has 1233 states and 1629 transitions. [2022-03-17 18:49:58,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:49:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1629 transitions. [2022-03-17 18:49:58,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-03-17 18:49:58,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:49:58,409 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:49:58,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:49:58,410 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:49:58,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:49:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash -610742730, now seen corresponding path program 1 times [2022-03-17 18:49:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:49:58,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664095931] [2022-03-17 18:49:58,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:49:58,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:49:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:49:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:49:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-03-17 18:49:58,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:49:58,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664095931] [2022-03-17 18:49:58,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664095931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:49:58,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:49:58,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:49:58,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693767979] [2022-03-17 18:49:58,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:49:58,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:49:58,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:49:58,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:49:58,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:49:58,691 INFO L87 Difference]: Start difference. First operand 1233 states and 1629 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:00,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:01,066 INFO L93 Difference]: Finished difference Result 1589 states and 2103 transitions. [2022-03-17 18:50:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:01,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 251 [2022-03-17 18:50:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:01,068 INFO L225 Difference]: With dead ends: 1589 [2022-03-17 18:50:01,068 INFO L226 Difference]: Without dead ends: 1589 [2022-03-17 18:50:01,069 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:01,069 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 90 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:01,069 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 294 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:01,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-03-17 18:50:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1381. [2022-03-17 18:50:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1376 states have (on average 1.3350290697674418) internal successors, (1837), 1376 states have internal predecessors, (1837), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1841 transitions. [2022-03-17 18:50:01,097 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1841 transitions. Word has length 251 [2022-03-17 18:50:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:01,097 INFO L478 AbstractCegarLoop]: Abstraction has 1381 states and 1841 transitions. [2022-03-17 18:50:01,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1841 transitions. [2022-03-17 18:50:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-17 18:50:01,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:01,099 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:01,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:50:01,100 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:01,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:01,100 INFO L85 PathProgramCache]: Analyzing trace with hash -767256932, now seen corresponding path program 1 times [2022-03-17 18:50:01,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:01,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359871554] [2022-03-17 18:50:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-03-17 18:50:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:01,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359871554] [2022-03-17 18:50:01,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359871554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:01,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:01,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:01,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961299554] [2022-03-17 18:50:01,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:01,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:01,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:01,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:01,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:01,388 INFO L87 Difference]: Start difference. First operand 1381 states and 1841 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:03,746 INFO L93 Difference]: Finished difference Result 1649 states and 2219 transitions. [2022-03-17 18:50:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 252 [2022-03-17 18:50:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:03,750 INFO L225 Difference]: With dead ends: 1649 [2022-03-17 18:50:03,750 INFO L226 Difference]: Without dead ends: 1649 [2022-03-17 18:50:03,750 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:03,750 INFO L912 BasicCegarLoop]: 102 mSDtfsCounter, 89 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:03,751 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 288 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-03-17 18:50:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1445. [2022-03-17 18:50:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.3618055555555555) internal successors, (1961), 1440 states have internal predecessors, (1961), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1965 transitions. [2022-03-17 18:50:03,773 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1965 transitions. Word has length 252 [2022-03-17 18:50:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:03,774 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 1965 transitions. [2022-03-17 18:50:03,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1965 transitions. [2022-03-17 18:50:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-17 18:50:03,776 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:03,776 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:03,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:50:03,777 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:03,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:03,777 INFO L85 PathProgramCache]: Analyzing trace with hash -484795741, now seen corresponding path program 1 times [2022-03-17 18:50:03,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:03,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600209144] [2022-03-17 18:50:03,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:03,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:03,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-17 18:50:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:03,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600209144] [2022-03-17 18:50:03,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600209144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:03,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:03,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671394716] [2022-03-17 18:50:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:03,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:03,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:03,962 INFO L87 Difference]: Start difference. First operand 1445 states and 1965 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:05,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:06,290 INFO L93 Difference]: Finished difference Result 1581 states and 2133 transitions. [2022-03-17 18:50:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:06,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-03-17 18:50:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:06,292 INFO L225 Difference]: With dead ends: 1581 [2022-03-17 18:50:06,292 INFO L226 Difference]: Without dead ends: 1581 [2022-03-17 18:50:06,292 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:06,292 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 15 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:06,292 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 460 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:06,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-03-17 18:50:06,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1561. [2022-03-17 18:50:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1556 states have (on average 1.3528277634961439) internal successors, (2105), 1556 states have internal predecessors, (2105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2109 transitions. [2022-03-17 18:50:06,303 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2109 transitions. Word has length 252 [2022-03-17 18:50:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:06,303 INFO L478 AbstractCegarLoop]: Abstraction has 1561 states and 2109 transitions. [2022-03-17 18:50:06,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2109 transitions. [2022-03-17 18:50:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-17 18:50:06,305 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:06,305 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:06,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:50:06,306 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1308477212, now seen corresponding path program 1 times [2022-03-17 18:50:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106253325] [2022-03-17 18:50:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-03-17 18:50:06,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:06,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106253325] [2022-03-17 18:50:06,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106253325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:06,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:06,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135073675] [2022-03-17 18:50:06,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:06,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:06,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:06,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:06,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:06,533 INFO L87 Difference]: Start difference. First operand 1561 states and 2109 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:08,839 INFO L93 Difference]: Finished difference Result 1721 states and 2321 transitions. [2022-03-17 18:50:08,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 252 [2022-03-17 18:50:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:08,842 INFO L225 Difference]: With dead ends: 1721 [2022-03-17 18:50:08,842 INFO L226 Difference]: Without dead ends: 1721 [2022-03-17 18:50:08,842 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:08,842 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 21 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:08,842 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 472 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2022-03-17 18:50:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1689. [2022-03-17 18:50:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1684 states have (on average 1.3521377672209025) internal successors, (2277), 1684 states have internal predecessors, (2277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2281 transitions. [2022-03-17 18:50:08,860 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2281 transitions. Word has length 252 [2022-03-17 18:50:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:08,860 INFO L478 AbstractCegarLoop]: Abstraction has 1689 states and 2281 transitions. [2022-03-17 18:50:08,860 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2281 transitions. [2022-03-17 18:50:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-03-17 18:50:08,879 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:08,880 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:08,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:50:08,880 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:08,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash 320425324, now seen corresponding path program 1 times [2022-03-17 18:50:08,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:08,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141318569] [2022-03-17 18:50:08,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:08,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:09,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141318569] [2022-03-17 18:50:09,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141318569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:09,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:09,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:09,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027963094] [2022-03-17 18:50:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:09,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:09,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:09,287 INFO L87 Difference]: Start difference. First operand 1689 states and 2281 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:11,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:11,659 INFO L93 Difference]: Finished difference Result 1893 states and 2527 transitions. [2022-03-17 18:50:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 282 [2022-03-17 18:50:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:11,661 INFO L225 Difference]: With dead ends: 1893 [2022-03-17 18:50:11,661 INFO L226 Difference]: Without dead ends: 1893 [2022-03-17 18:50:11,661 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:11,665 INFO L912 BasicCegarLoop]: 102 mSDtfsCounter, 93 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:11,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 288 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2022-03-17 18:50:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1689. [2022-03-17 18:50:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1684 states have (on average 1.3473871733966747) internal successors, (2269), 1684 states have internal predecessors, (2269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2273 transitions. [2022-03-17 18:50:11,677 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2273 transitions. Word has length 282 [2022-03-17 18:50:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:11,677 INFO L478 AbstractCegarLoop]: Abstraction has 1689 states and 2273 transitions. [2022-03-17 18:50:11,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2273 transitions. [2022-03-17 18:50:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-03-17 18:50:11,680 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:11,680 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:11,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:50:11,680 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:11,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1689391821, now seen corresponding path program 1 times [2022-03-17 18:50:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:11,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878165060] [2022-03-17 18:50:11,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878165060] [2022-03-17 18:50:11,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878165060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:11,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:11,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475979431] [2022-03-17 18:50:11,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:11,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:11,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:11,914 INFO L87 Difference]: Start difference. First operand 1689 states and 2273 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:13,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:14,256 INFO L93 Difference]: Finished difference Result 2016 states and 2693 transitions. [2022-03-17 18:50:14,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:14,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 282 [2022-03-17 18:50:14,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:14,259 INFO L225 Difference]: With dead ends: 2016 [2022-03-17 18:50:14,259 INFO L226 Difference]: Without dead ends: 2016 [2022-03-17 18:50:14,259 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:14,259 INFO L912 BasicCegarLoop]: 103 mSDtfsCounter, 91 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:14,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 290 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2022-03-17 18:50:14,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1800. [2022-03-17 18:50:14,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1795 states have (on average 1.3476323119777158) internal successors, (2419), 1795 states have internal predecessors, (2419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:14,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2423 transitions. [2022-03-17 18:50:14,272 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2423 transitions. Word has length 282 [2022-03-17 18:50:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:14,272 INFO L478 AbstractCegarLoop]: Abstraction has 1800 states and 2423 transitions. [2022-03-17 18:50:14,272 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2423 transitions. [2022-03-17 18:50:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-03-17 18:50:14,274 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:14,274 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:14,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:50:14,274 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:14,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1933428297, now seen corresponding path program 1 times [2022-03-17 18:50:14,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:14,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992968127] [2022-03-17 18:50:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:14,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:14,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:14,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992968127] [2022-03-17 18:50:14,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992968127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:14,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:14,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:14,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042162131] [2022-03-17 18:50:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:14,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:14,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:14,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:14,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:14,513 INFO L87 Difference]: Start difference. First operand 1800 states and 2423 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:16,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:16,895 INFO L93 Difference]: Finished difference Result 1896 states and 2561 transitions. [2022-03-17 18:50:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 283 [2022-03-17 18:50:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:16,897 INFO L225 Difference]: With dead ends: 1896 [2022-03-17 18:50:16,897 INFO L226 Difference]: Without dead ends: 1896 [2022-03-17 18:50:16,897 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:16,898 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 38 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:16,898 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 488 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2022-03-17 18:50:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1824. [2022-03-17 18:50:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1819 states have (on average 1.3529411764705883) internal successors, (2461), 1819 states have internal predecessors, (2461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2465 transitions. [2022-03-17 18:50:16,910 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2465 transitions. Word has length 283 [2022-03-17 18:50:16,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:16,910 INFO L478 AbstractCegarLoop]: Abstraction has 1824 states and 2465 transitions. [2022-03-17 18:50:16,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2465 transitions. [2022-03-17 18:50:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-03-17 18:50:16,912 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:16,912 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:16,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:50:16,912 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:16,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1630361899, now seen corresponding path program 1 times [2022-03-17 18:50:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:16,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806169689] [2022-03-17 18:50:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:16,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:17,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:17,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806169689] [2022-03-17 18:50:17,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806169689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:17,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:17,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452508292] [2022-03-17 18:50:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:17,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:17,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:17,146 INFO L87 Difference]: Start difference. First operand 1824 states and 2465 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:19,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:19,488 INFO L93 Difference]: Finished difference Result 1890 states and 2552 transitions. [2022-03-17 18:50:19,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:19,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 283 [2022-03-17 18:50:19,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:19,490 INFO L225 Difference]: With dead ends: 1890 [2022-03-17 18:50:19,490 INFO L226 Difference]: Without dead ends: 1890 [2022-03-17 18:50:19,490 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:19,491 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 34 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:19,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 484 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-03-17 18:50:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1830. [2022-03-17 18:50:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1825 states have (on average 1.3517808219178082) internal successors, (2467), 1825 states have internal predecessors, (2467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2471 transitions. [2022-03-17 18:50:19,504 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2471 transitions. Word has length 283 [2022-03-17 18:50:19,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:19,504 INFO L478 AbstractCegarLoop]: Abstraction has 1830 states and 2471 transitions. [2022-03-17 18:50:19,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2471 transitions. [2022-03-17 18:50:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-03-17 18:50:19,507 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:19,507 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:19,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:50:19,507 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:19,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1601195619, now seen corresponding path program 1 times [2022-03-17 18:50:19,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:19,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998742596] [2022-03-17 18:50:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:19,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:19,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:19,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998742596] [2022-03-17 18:50:19,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998742596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:19,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:19,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:19,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055742187] [2022-03-17 18:50:19,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:19,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:19,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:19,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:19,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:19,742 INFO L87 Difference]: Start difference. First operand 1830 states and 2471 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:21,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:22,073 INFO L93 Difference]: Finished difference Result 1890 states and 2549 transitions. [2022-03-17 18:50:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 288 [2022-03-17 18:50:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:22,075 INFO L225 Difference]: With dead ends: 1890 [2022-03-17 18:50:22,075 INFO L226 Difference]: Without dead ends: 1890 [2022-03-17 18:50:22,076 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:22,076 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:22,076 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 482 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:50:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-03-17 18:50:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1839. [2022-03-17 18:50:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1834 states have (on average 1.3500545256270446) internal successors, (2476), 1834 states have internal predecessors, (2476), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2480 transitions. [2022-03-17 18:50:22,091 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2480 transitions. Word has length 288 [2022-03-17 18:50:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:22,091 INFO L478 AbstractCegarLoop]: Abstraction has 1839 states and 2480 transitions. [2022-03-17 18:50:22,091 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2480 transitions. [2022-03-17 18:50:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-03-17 18:50:22,094 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:22,094 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:22,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:50:22,094 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:22,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash -693063078, now seen corresponding path program 1 times [2022-03-17 18:50:22,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:22,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398065572] [2022-03-17 18:50:22,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:22,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:22,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:22,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398065572] [2022-03-17 18:50:22,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398065572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:22,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:22,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:22,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974714643] [2022-03-17 18:50:22,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:22,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:22,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:22,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:22,348 INFO L87 Difference]: Start difference. First operand 1839 states and 2480 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:24,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:24,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:24,760 INFO L93 Difference]: Finished difference Result 2043 states and 2730 transitions. [2022-03-17 18:50:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:24,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 289 [2022-03-17 18:50:24,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:24,764 INFO L225 Difference]: With dead ends: 2043 [2022-03-17 18:50:24,764 INFO L226 Difference]: Without dead ends: 2043 [2022-03-17 18:50:24,764 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:24,764 INFO L912 BasicCegarLoop]: 104 mSDtfsCounter, 86 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:24,764 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 292 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2022-03-17 18:50:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 1847. [2022-03-17 18:50:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1842 states have (on average 1.3507057546145493) internal successors, (2488), 1842 states have internal predecessors, (2488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2492 transitions. [2022-03-17 18:50:24,780 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2492 transitions. Word has length 289 [2022-03-17 18:50:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:24,780 INFO L478 AbstractCegarLoop]: Abstraction has 1847 states and 2492 transitions. [2022-03-17 18:50:24,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2492 transitions. [2022-03-17 18:50:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-03-17 18:50:24,782 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:24,783 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:24,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:50:24,783 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1488727516, now seen corresponding path program 1 times [2022-03-17 18:50:24,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:24,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208952005] [2022-03-17 18:50:24,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:24,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2022-03-17 18:50:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:25,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208952005] [2022-03-17 18:50:25,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208952005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:50:25,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:50:25,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:50:25,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318606781] [2022-03-17 18:50:25,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:50:25,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:50:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:50:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:50:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:50:25,035 INFO L87 Difference]: Start difference. First operand 1847 states and 2492 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:27,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:50:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:50:27,424 INFO L93 Difference]: Finished difference Result 2031 states and 2710 transitions. [2022-03-17 18:50:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:50:27,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2022-03-17 18:50:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:50:27,427 INFO L225 Difference]: With dead ends: 2031 [2022-03-17 18:50:27,427 INFO L226 Difference]: Without dead ends: 2027 [2022-03-17 18:50:27,427 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:50:27,427 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 82 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:50:27,427 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 294 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:50:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2022-03-17 18:50:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1855. [2022-03-17 18:50:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1850 states have (on average 1.3513513513513513) internal successors, (2500), 1850 states have internal predecessors, (2500), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2504 transitions. [2022-03-17 18:50:27,449 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2504 transitions. Word has length 290 [2022-03-17 18:50:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:50:27,449 INFO L478 AbstractCegarLoop]: Abstraction has 1855 states and 2504 transitions. [2022-03-17 18:50:27,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:50:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2504 transitions. [2022-03-17 18:50:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-03-17 18:50:27,452 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:50:27,452 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:50:27,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:50:27,452 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:50:27,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:50:27,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1235340779, now seen corresponding path program 1 times [2022-03-17 18:50:27,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:50:27,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604734558] [2022-03-17 18:50:27,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:27,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:50:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:50:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 432 proven. 252 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-03-17 18:50:30,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:50:30,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604734558] [2022-03-17 18:50:30,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604734558] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:50:30,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045672789] [2022-03-17 18:50:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:50:30,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:50:30,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:50:30,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:50:30,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-17 18:50:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:50:32,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 2005 conjuncts, 226 conjunts are in the unsatisfiable core [2022-03-17 18:50:32,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:50:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:50:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:58,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:51:58,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:52:06,270 INFO L244 Elim1Store]: Index analysis took 8078 ms