/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.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:15:22,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:15:22,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:15:22,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:15:22,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:15:22,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:15:22,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:15:22,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:15:22,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:15:22,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:15:22,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:15:22,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:15:22,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:15:22,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:15:22,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:15:22,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:15:22,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:15:22,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:15:22,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:15:22,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:15:22,431 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:15:22,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:15:22,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:15:22,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:15:22,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:15:22,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:15:22,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:15:22,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:15:22,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:15:22,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:15:22,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 04:15:22,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 04:15:22,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 04:15:22,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 04:15:22,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 04:15:22,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 04:15:22,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 04:15:22,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 04:15:22,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 04:15:22,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:15:22,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:15:22,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:15:22,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:15:22,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:15:22,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:15:22,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:15:22,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:15:22,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:15:22,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:15:22,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:15:22,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:15:22,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:15:22,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:15:22,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:15:22,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:15:22,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:22,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:15:22,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:15:22,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:15:22,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:15:22,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:15:22,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:15:22,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:15:22,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:15:22,696 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:15:22,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-04-05 04:15:22,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a2497b4/15e3432d01d645f9b0ef34688952aecf/FLAG5e6c66af0 [2022-04-05 04:15:23,221 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:15:23,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-04-05 04:15:23,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a2497b4/15e3432d01d645f9b0ef34688952aecf/FLAG5e6c66af0 [2022-04-05 04:15:23,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a2497b4/15e3432d01d645f9b0ef34688952aecf [2022-04-05 04:15:23,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:15:23,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:15:23,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:23,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:15:23,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:15:23,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea30909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23, skipping insertion in model container [2022-04-05 04:15:23,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:15:23,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:15:23,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2022-04-05 04:15:23,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:23,700 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:15:23,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c[65520,65533] [2022-04-05 04:15:23,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:23,800 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:15:23,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23 WrapperNode [2022-04-05 04:15:23,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:23,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:15:23,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:15:23,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:15:23,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:15:23,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:15:23,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:15:23,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:15:23,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (1/1) ... [2022-04-05 04:15:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:15:23,940 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) [2022-04-05 04:15:23,971 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 [2022-04-05 04:15:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:15:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:15:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:15:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-04-05 04:15:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-04-05 04:15:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:15:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-05 04:15:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:15:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:15:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:15:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:15:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:15:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:15:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:15:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:15:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:15:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:15:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:15:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:15:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:15:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:15:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:15:24,153 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:15:24,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:15:25,223 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:15:25,570 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-05 04:15:25,570 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-05 04:15:25,591 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:15:25,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:15:25,598 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:15:25,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:25 BoogieIcfgContainer [2022-04-05 04:15:25,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:15:25,601 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:15:25,601 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:15:25,602 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:15:25,604 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:25" (1/1) ... [2022-04-05 04:15:25,606 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:15:25,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:25 BasicIcfg [2022-04-05 04:15:25,655 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:15:25,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:15:25,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:15:25,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:15:25,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:15:23" (1/4) ... [2022-04-05 04:15:25,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0c864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:25, skipping insertion in model container [2022-04-05 04:15:25,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:23" (2/4) ... [2022-04-05 04:15:25,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0c864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:25, skipping insertion in model container [2022-04-05 04:15:25,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:25" (3/4) ... [2022-04-05 04:15:25,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0c864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:15:25, skipping insertion in model container [2022-04-05 04:15:25,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:25" (4/4) ... [2022-04-05 04:15:25,664 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.cJordan [2022-04-05 04:15:25,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:15:25,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:15:25,714 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:15:25,720 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 [2022-04-05 04:15:25,721 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:15:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 04:15:25,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-05 04:15:25,748 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:25,749 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:25,749 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1407118819, now seen corresponding path program 1 times [2022-04-05 04:15:25,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:25,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352595976] [2022-04-05 04:15:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:25,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:15:26,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:26,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352595976] [2022-04-05 04:15:26,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352595976] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:26,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:26,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:26,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577601281] [2022-04-05 04:15:26,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:26,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:26,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:26,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:26,392 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:28,429 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 [] [2022-04-05 04:15:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:28,863 INFO L93 Difference]: Finished difference Result 144 states and 228 transitions. [2022-04-05 04:15:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:28,865 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 [2022-04-05 04:15:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:28,874 INFO L225 Difference]: With dead ends: 144 [2022-04-05 04:15:28,874 INFO L226 Difference]: Without dead ends: 124 [2022-04-05 04:15:28,875 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:28,878 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:28,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-04-05 04:15:28,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-04-05 04:15:28,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-04-05 04:15:28,915 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-04-05 04:15:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:28,916 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-04-05 04:15:28,916 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) [2022-04-05 04:15:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-04-05 04:15:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-05 04:15:28,917 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:28,917 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:28,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:15:28,918 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:28,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:28,918 INFO L85 PathProgramCache]: Analyzing trace with hash -765789009, now seen corresponding path program 1 times [2022-04-05 04:15:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:28,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928062827] [2022-04-05 04:15:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:28,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:29,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928062827] [2022-04-05 04:15:29,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928062827] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:29,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:29,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424266631] [2022-04-05 04:15:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:29,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:29,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:29,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:29,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:29,147 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:31,158 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 [] [2022-04-05 04:15:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:31,433 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2022-04-05 04:15:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:31,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-04-05 04:15:31,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:31,436 INFO L225 Difference]: With dead ends: 226 [2022-04-05 04:15:31,436 INFO L226 Difference]: Without dead ends: 226 [2022-04-05 04:15:31,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:31,437 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:31,437 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:15:31,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-04-05 04:15:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-04-05 04:15:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-04-05 04:15:31,451 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-04-05 04:15:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:31,452 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-04-05 04:15:31,452 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-04-05 04:15:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-05 04:15:31,454 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:31,454 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:31,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:15:31,454 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:31,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:31,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1602004893, now seen corresponding path program 1 times [2022-04-05 04:15:31,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:31,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093940718] [2022-04-05 04:15:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:31,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:31,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:31,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093940718] [2022-04-05 04:15:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093940718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:31,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:31,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:31,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116149427] [2022-04-05 04:15:31,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:31,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:31,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:31,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:31,643 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:33,659 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 [] [2022-04-05 04:15:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:34,098 INFO L93 Difference]: Finished difference Result 261 states and 382 transitions. [2022-04-05 04:15:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:34,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-04-05 04:15:34,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:34,100 INFO L225 Difference]: With dead ends: 261 [2022-04-05 04:15:34,100 INFO L226 Difference]: Without dead ends: 261 [2022-04-05 04:15:34,101 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:34,102 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:34,102 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-05 04:15:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-04-05 04:15:34,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-04-05 04:15:34,115 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-04-05 04:15:34,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:34,116 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-04-05 04:15:34,116 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-04-05 04:15:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-05 04:15:34,118 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:34,118 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:34,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:15:34,119 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:34,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:34,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1286715183, now seen corresponding path program 2 times [2022-04-05 04:15:34,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:34,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351499762] [2022-04-05 04:15:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:34,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:34,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:34,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351499762] [2022-04-05 04:15:34,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351499762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:34,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:34,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977953347] [2022-04-05 04:15:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:34,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:34,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:34,381 INFO L87 Difference]: Start difference. First operand 244 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:36,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:15:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:36,761 INFO L93 Difference]: Finished difference Result 260 states and 380 transitions. [2022-04-05 04:15:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:36,765 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 [2022-04-05 04:15:36,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:36,767 INFO L225 Difference]: With dead ends: 260 [2022-04-05 04:15:36,767 INFO L226 Difference]: Without dead ends: 260 [2022-04-05 04:15:36,767 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:36,768 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:36,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-04-05 04:15:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2022-04-05 04:15:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 239 states have internal predecessors, (355), 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) [2022-04-05 04:15:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 359 transitions. [2022-04-05 04:15:36,788 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 359 transitions. Word has length 75 [2022-04-05 04:15:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:36,788 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 359 transitions. [2022-04-05 04:15:36,788 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) [2022-04-05 04:15:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 359 transitions. [2022-04-05 04:15:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-05 04:15:36,791 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:36,791 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:36,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:15:36,791 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash -372588721, now seen corresponding path program 1 times [2022-04-05 04:15:36,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:36,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865284240] [2022-04-05 04:15:36,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:36,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:36,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865284240] [2022-04-05 04:15:36,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865284240] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:36,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:36,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274889826] [2022-04-05 04:15:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:36,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:36,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:36,995 INFO L87 Difference]: Start difference. First operand 244 states and 359 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) [2022-04-05 04:15:39,004 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 [] [2022-04-05 04:15:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:39,428 INFO L93 Difference]: Finished difference Result 429 states and 634 transitions. [2022-04-05 04:15:39,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:39,429 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 [2022-04-05 04:15:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:39,431 INFO L225 Difference]: With dead ends: 429 [2022-04-05 04:15:39,431 INFO L226 Difference]: Without dead ends: 429 [2022-04-05 04:15:39,431 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:39,432 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:39,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-04-05 04:15:39,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 268. [2022-04-05 04:15:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4828897338403042) internal successors, (390), 263 states have internal predecessors, (390), 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) [2022-04-05 04:15:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 394 transitions. [2022-04-05 04:15:39,453 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 394 transitions. Word has length 75 [2022-04-05 04:15:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:39,453 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 394 transitions. [2022-04-05 04:15:39,453 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) [2022-04-05 04:15:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 394 transitions. [2022-04-05 04:15:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-05 04:15:39,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:39,461 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:39,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:15:39,461 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash -295589606, now seen corresponding path program 1 times [2022-04-05 04:15:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062567399] [2022-04-05 04:15:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:39,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:39,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062567399] [2022-04-05 04:15:39,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062567399] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:39,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:39,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739363906] [2022-04-05 04:15:39,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:39,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:39,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:39,678 INFO L87 Difference]: Start difference. First operand 268 states and 394 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) [2022-04-05 04:15:41,695 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 [] [2022-04-05 04:15:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:42,145 INFO L93 Difference]: Finished difference Result 429 states and 631 transitions. [2022-04-05 04:15:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:42,146 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 [2022-04-05 04:15:42,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:42,148 INFO L225 Difference]: With dead ends: 429 [2022-04-05 04:15:42,148 INFO L226 Difference]: Without dead ends: 429 [2022-04-05 04:15:42,148 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:42,149 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:42,149 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 306 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-04-05 04:15:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 270. [2022-04-05 04:15:42,158 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) [2022-04-05 04:15:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2022-04-05 04:15:42,159 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 76 [2022-04-05 04:15:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:42,159 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2022-04-05 04:15:42,160 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) [2022-04-05 04:15:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2022-04-05 04:15:42,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-05 04:15:42,161 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:42,161 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:42,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:15:42,161 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash -800384589, now seen corresponding path program 1 times [2022-04-05 04:15:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:42,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764428694] [2022-04-05 04:15:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:42,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:42,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764428694] [2022-04-05 04:15:42,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764428694] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:42,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:42,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:42,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725514097] [2022-04-05 04:15:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:42,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:42,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:42,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:42,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:42,362 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:44,372 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 [] [2022-04-05 04:15:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:44,744 INFO L93 Difference]: Finished difference Result 286 states and 415 transitions. [2022-04-05 04:15:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:44,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-05 04:15:44,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:44,746 INFO L225 Difference]: With dead ends: 286 [2022-04-05 04:15:44,746 INFO L226 Difference]: Without dead ends: 286 [2022-04-05 04:15:44,747 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:44,747 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 31 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:44,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:44,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-04-05 04:15:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 270. [2022-04-05 04:15:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.471698113207547) internal successors, (390), 265 states have internal predecessors, (390), 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) [2022-04-05 04:15:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 394 transitions. [2022-04-05 04:15:44,761 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 394 transitions. Word has length 77 [2022-04-05 04:15:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:44,764 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 394 transitions. [2022-04-05 04:15:44,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 394 transitions. [2022-04-05 04:15:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-05 04:15:44,765 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:44,765 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:44,765 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:15:44,765 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:44,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:44,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1411914628, now seen corresponding path program 1 times [2022-04-05 04:15:44,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:44,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841222470] [2022-04-05 04:15:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-05 04:15:44,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:44,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841222470] [2022-04-05 04:15:44,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841222470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:44,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:44,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:44,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948887207] [2022-04-05 04:15:44,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:44,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:44,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:44,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:44,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:44,960 INFO L87 Difference]: Start difference. First operand 270 states and 394 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:46,969 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 [] [2022-04-05 04:15:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:47,391 INFO L93 Difference]: Finished difference Result 405 states and 591 transitions. [2022-04-05 04:15:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:47,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-04-05 04:15:47,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:47,393 INFO L225 Difference]: With dead ends: 405 [2022-04-05 04:15:47,393 INFO L226 Difference]: Without dead ends: 405 [2022-04-05 04:15:47,394 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:47,394 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:47,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-04-05 04:15:47,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-04-05 04:15:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 1.4675) internal successors, (587), 400 states have internal predecessors, (587), 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) [2022-04-05 04:15:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 591 transitions. [2022-04-05 04:15:47,402 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 591 transitions. Word has length 78 [2022-04-05 04:15:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:47,402 INFO L478 AbstractCegarLoop]: Abstraction has 405 states and 591 transitions. [2022-04-05 04:15:47,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 591 transitions. [2022-04-05 04:15:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-05 04:15:47,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:47,403 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:47,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:15:47,403 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:47,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1442934435, now seen corresponding path program 1 times [2022-04-05 04:15:47,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:47,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906583599] [2022-04-05 04:15:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:15:47,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:47,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906583599] [2022-04-05 04:15:47,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906583599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:47,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:47,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734751336] [2022-04-05 04:15:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:47,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:47,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:47,561 INFO L87 Difference]: Start difference. First operand 405 states and 591 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) [2022-04-05 04:15:49,570 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 [] [2022-04-05 04:15:49,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:49,966 INFO L93 Difference]: Finished difference Result 538 states and 785 transitions. [2022-04-05 04:15:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:49,966 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 [2022-04-05 04:15:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:49,968 INFO L225 Difference]: With dead ends: 538 [2022-04-05 04:15:49,968 INFO L226 Difference]: Without dead ends: 538 [2022-04-05 04:15:49,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:49,969 INFO L913 BasicCegarLoop]: 312 mSDtfsCounter, 132 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:49,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 476 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-04-05 04:15:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-04-05 04:15:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 533 states have (on average 1.4652908067542214) internal successors, (781), 533 states have internal predecessors, (781), 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) [2022-04-05 04:15:49,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 785 transitions. [2022-04-05 04:15:49,980 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 785 transitions. Word has length 78 [2022-04-05 04:15:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:49,980 INFO L478 AbstractCegarLoop]: Abstraction has 538 states and 785 transitions. [2022-04-05 04:15:49,981 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) [2022-04-05 04:15:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 785 transitions. [2022-04-05 04:15:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-05 04:15:49,982 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:49,982 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:49,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:15:49,982 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1560572353, now seen corresponding path program 1 times [2022-04-05 04:15:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490398911] [2022-04-05 04:15:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:49,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:15:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:50,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490398911] [2022-04-05 04:15:50,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490398911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:50,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:50,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:50,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139210250] [2022-04-05 04:15:50,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:50,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:50,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:50,192 INFO L87 Difference]: Start difference. First operand 538 states and 785 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:52,211 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 [] [2022-04-05 04:15:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:52,627 INFO L93 Difference]: Finished difference Result 672 states and 981 transitions. [2022-04-05 04:15:52,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:52,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-04-05 04:15:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:52,630 INFO L225 Difference]: With dead ends: 672 [2022-04-05 04:15:52,630 INFO L226 Difference]: Without dead ends: 672 [2022-04-05 04:15:52,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:52,631 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:52,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-04-05 04:15:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2022-04-05 04:15:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 667 states have (on average 1.464767616191904) internal successors, (977), 667 states have internal predecessors, (977), 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) [2022-04-05 04:15:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 981 transitions. [2022-04-05 04:15:52,644 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 981 transitions. Word has length 98 [2022-04-05 04:15:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:52,644 INFO L478 AbstractCegarLoop]: Abstraction has 672 states and 981 transitions. [2022-04-05 04:15:52,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 981 transitions. [2022-04-05 04:15:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-04-05 04:15:52,646 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:52,646 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:52,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:15:52,646 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash 951047844, now seen corresponding path program 1 times [2022-04-05 04:15:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:52,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500679320] [2022-04-05 04:15:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:52,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:15:52,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:52,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500679320] [2022-04-05 04:15:52,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500679320] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:52,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:52,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:15:52,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681185532] [2022-04-05 04:15:52,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:52,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:15:52,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:15:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:52,814 INFO L87 Difference]: Start difference. First operand 672 states and 981 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:54,823 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 [] [2022-04-05 04:15:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:55,201 INFO L93 Difference]: Finished difference Result 669 states and 971 transitions. [2022-04-05 04:15:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:15:55,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-04-05 04:15:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:55,204 INFO L225 Difference]: With dead ends: 669 [2022-04-05 04:15:55,204 INFO L226 Difference]: Without dead ends: 669 [2022-04-05 04:15:55,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:15:55,205 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 128 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:55,205 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 478 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:55,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-04-05 04:15:55,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2022-04-05 04:15:55,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 664 states have (on average 1.4563253012048192) internal successors, (967), 664 states have internal predecessors, (967), 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) [2022-04-05 04:15:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 971 transitions. [2022-04-05 04:15:55,217 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 971 transitions. Word has length 119 [2022-04-05 04:15:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:55,218 INFO L478 AbstractCegarLoop]: Abstraction has 669 states and 971 transitions. [2022-04-05 04:15:55,218 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:15:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 971 transitions. [2022-04-05 04:15:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-04-05 04:15:55,219 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:55,220 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:55,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:15:55,220 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:55,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash -840493056, now seen corresponding path program 1 times [2022-04-05 04:15:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:55,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63580353] [2022-04-05 04:15:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:55,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-05 04:15:55,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:55,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63580353] [2022-04-05 04:15:55,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63580353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:55,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:55,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153048684] [2022-04-05 04:15:55,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:55,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:55,440 INFO L87 Difference]: Start difference. First operand 669 states and 971 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) [2022-04-05 04:15:57,450 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 [] [2022-04-05 04:15:57,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:15:57,852 INFO L93 Difference]: Finished difference Result 1115 states and 1613 transitions. [2022-04-05 04:15:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:15:57,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-04-05 04:15:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:15:57,856 INFO L225 Difference]: With dead ends: 1115 [2022-04-05 04:15:57,856 INFO L226 Difference]: Without dead ends: 1115 [2022-04-05 04:15:57,856 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:15:57,857 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 110 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:15:57,857 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 283 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:15:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-04-05 04:15:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 760. [2022-04-05 04:15:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 755 states have (on average 1.4728476821192054) internal successors, (1112), 755 states have internal predecessors, (1112), 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) [2022-04-05 04:15:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1116 transitions. [2022-04-05 04:15:57,873 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1116 transitions. Word has length 121 [2022-04-05 04:15:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:15:57,873 INFO L478 AbstractCegarLoop]: Abstraction has 760 states and 1116 transitions. [2022-04-05 04:15:57,873 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) [2022-04-05 04:15:57,874 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1116 transitions. [2022-04-05 04:15:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-04-05 04:15:57,875 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:57,875 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:15:57,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:15:57,876 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:57,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:57,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1448569919, now seen corresponding path program 1 times [2022-04-05 04:15:57,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:57,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260441380] [2022-04-05 04:15:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:57,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:15:58,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:58,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260441380] [2022-04-05 04:15:58,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260441380] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:58,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:58,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157300425] [2022-04-05 04:15:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:58,054 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:58,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:58,055 INFO L87 Difference]: Start difference. First operand 760 states and 1116 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:00,066 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 [] [2022-04-05 04:16:00,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:00,473 INFO L93 Difference]: Finished difference Result 966 states and 1397 transitions. [2022-04-05 04:16:00,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:00,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-04-05 04:16:00,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:00,477 INFO L225 Difference]: With dead ends: 966 [2022-04-05 04:16:00,477 INFO L226 Difference]: Without dead ends: 966 [2022-04-05 04:16:00,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:00,478 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 43 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:00,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 516 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-04-05 04:16:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 856. [2022-04-05 04:16:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 851 states have (on average 1.490011750881316) internal successors, (1268), 851 states have internal predecessors, (1268), 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) [2022-04-05 04:16:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1272 transitions. [2022-04-05 04:16:00,495 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1272 transitions. Word has length 121 [2022-04-05 04:16:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:00,496 INFO L478 AbstractCegarLoop]: Abstraction has 856 states and 1272 transitions. [2022-04-05 04:16:00,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1272 transitions. [2022-04-05 04:16:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-04-05 04:16:00,498 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:00,498 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2022-04-05 04:16:00,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:16:00,498 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1823323197, now seen corresponding path program 2 times [2022-04-05 04:16:00,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:00,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065359624] [2022-04-05 04:16:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:00,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:16:00,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:00,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065359624] [2022-04-05 04:16:00,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065359624] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:00,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:00,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:00,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227118193] [2022-04-05 04:16:00,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:00,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:00,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:00,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:00,765 INFO L87 Difference]: Start difference. First operand 856 states and 1272 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:02,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:04,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:06,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:08,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:08,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:08,744 INFO L93 Difference]: Finished difference Result 1234 states and 1807 transitions. [2022-04-05 04:16:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:08,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 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 136 [2022-04-05 04:16:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:08,749 INFO L225 Difference]: With dead ends: 1234 [2022-04-05 04:16:08,749 INFO L226 Difference]: Without dead ends: 1234 [2022-04-05 04:16:08,749 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:08,750 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 110 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:08,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 299 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-04-05 04:16:08,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2022-04-05 04:16:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 856. [2022-04-05 04:16:08,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 851 states have (on average 1.4747356051703877) internal successors, (1255), 851 states have internal predecessors, (1255), 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) [2022-04-05 04:16:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1259 transitions. [2022-04-05 04:16:08,770 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1259 transitions. Word has length 136 [2022-04-05 04:16:08,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:08,770 INFO L478 AbstractCegarLoop]: Abstraction has 856 states and 1259 transitions. [2022-04-05 04:16:08,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1259 transitions. [2022-04-05 04:16:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-05 04:16:08,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:08,772 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:08,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:16:08,773 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:08,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:08,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2071101255, now seen corresponding path program 1 times [2022-04-05 04:16:08,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:08,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000932495] [2022-04-05 04:16:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:08,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:08,976 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:16:08,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:08,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000932495] [2022-04-05 04:16:08,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000932495] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:08,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:08,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169938560] [2022-04-05 04:16:08,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:08,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:08,977 INFO L87 Difference]: Start difference. First operand 856 states and 1259 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) [2022-04-05 04:16:10,987 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 [] [2022-04-05 04:16:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:11,380 INFO L93 Difference]: Finished difference Result 962 states and 1376 transitions. [2022-04-05 04:16:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:11,381 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 [2022-04-05 04:16:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:11,384 INFO L225 Difference]: With dead ends: 962 [2022-04-05 04:16:11,384 INFO L226 Difference]: Without dead ends: 962 [2022-04-05 04:16:11,385 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:11,385 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 51 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:11,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 514 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 399 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-04-05 04:16:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 856. [2022-04-05 04:16:11,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 851 states have (on average 1.4700352526439482) internal successors, (1251), 851 states have internal predecessors, (1251), 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) [2022-04-05 04:16:11,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1255 transitions. [2022-04-05 04:16:11,403 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1255 transitions. Word has length 138 [2022-04-05 04:16:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:11,403 INFO L478 AbstractCegarLoop]: Abstraction has 856 states and 1255 transitions. [2022-04-05 04:16:11,403 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) [2022-04-05 04:16:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1255 transitions. [2022-04-05 04:16:11,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 04:16:11,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:11,405 INFO L499 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, 1, 1] [2022-04-05 04:16:11,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:16:11,406 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:11,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1142128455, now seen corresponding path program 1 times [2022-04-05 04:16:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:11,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300613248] [2022-04-05 04:16:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 157 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-04-05 04:16:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:11,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300613248] [2022-04-05 04:16:11,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300613248] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:11,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141173819] [2022-04-05 04:16:11,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:11,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:16:11,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:11,614 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) [2022-04-05 04:16:11,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:16:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:12,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-05 04:16:12,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:16:12,563 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:16:12,564 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 [2022-04-05 04:16:12,570 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 [2022-04-05 04:16:12,576 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 [2022-04-05 04:16:12,585 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 [2022-04-05 04:16:12,724 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 [2022-04-05 04:16:12,857 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:16:12,899 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 [2022-04-05 04:16:12,938 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:16:12,939 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 [2022-04-05 04:16:13,042 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:16:13,042 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 [2022-04-05 04:16:13,089 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 [2022-04-05 04:16:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 123 proven. 40 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-04-05 04:16:13,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:16:13,374 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:16:13,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141173819] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:13,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:16:13,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:16:13,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820914113] [2022-04-05 04:16:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:13,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:16:13,376 INFO L87 Difference]: Start difference. First operand 856 states and 1255 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2022-04-05 04:16:15,385 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 [] [2022-04-05 04:16:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:15,649 INFO L93 Difference]: Finished difference Result 1235 states and 1791 transitions. [2022-04-05 04:16:15,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:15,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 139 [2022-04-05 04:16:15,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:15,654 INFO L225 Difference]: With dead ends: 1235 [2022-04-05 04:16:15,654 INFO L226 Difference]: Without dead ends: 1235 [2022-04-05 04:16:15,654 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:16:15,655 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 109 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:15,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 291 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:16:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2022-04-05 04:16:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 876. [2022-04-05 04:16:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 871 states have (on average 1.4672789896670493) internal successors, (1278), 871 states have internal predecessors, (1278), 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) [2022-04-05 04:16:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1282 transitions. [2022-04-05 04:16:15,672 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1282 transitions. Word has length 139 [2022-04-05 04:16:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:15,673 INFO L478 AbstractCegarLoop]: Abstraction has 876 states and 1282 transitions. [2022-04-05 04:16:15,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2022-04-05 04:16:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1282 transitions. [2022-04-05 04:16:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 04:16:15,675 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:15,675 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:15,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 04:16:15,892 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,SelfDestructingSolverStorable15 [2022-04-05 04:16:15,893 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:15,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:15,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1758197537, now seen corresponding path program 1 times [2022-04-05 04:16:15,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:15,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434769288] [2022-04-05 04:16:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:15,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:16:16,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:16,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434769288] [2022-04-05 04:16:16,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434769288] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:16,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:16,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283330522] [2022-04-05 04:16:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:16,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:16,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:16,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:16,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:16,085 INFO L87 Difference]: Start difference. First operand 876 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:18,095 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 [] [2022-04-05 04:16:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:18,438 INFO L93 Difference]: Finished difference Result 946 states and 1355 transitions. [2022-04-05 04:16:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 04:16:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:18,441 INFO L225 Difference]: With dead ends: 946 [2022-04-05 04:16:18,441 INFO L226 Difference]: Without dead ends: 946 [2022-04-05 04:16:18,441 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:16:18,441 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 41 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:18,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 498 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-04-05 04:16:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 876. [2022-04-05 04:16:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 871 states have (on average 1.462686567164179) internal successors, (1274), 871 states have internal predecessors, (1274), 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) [2022-04-05 04:16:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1278 transitions. [2022-04-05 04:16:18,456 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1278 transitions. Word has length 139 [2022-04-05 04:16:18,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:18,457 INFO L478 AbstractCegarLoop]: Abstraction has 876 states and 1278 transitions. [2022-04-05 04:16:18,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:18,457 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1278 transitions. [2022-04-05 04:16:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-05 04:16:18,459 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:18,459 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:18,459 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:16:18,459 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash 961502508, now seen corresponding path program 1 times [2022-04-05 04:16:18,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:18,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456743238] [2022-04-05 04:16:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 158 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:16:18,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:18,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456743238] [2022-04-05 04:16:18,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456743238] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:18,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256751689] [2022-04-05 04:16:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:18,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:16:18,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:18,680 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) [2022-04-05 04:16:18,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 04:16:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:19,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-05 04:16:19,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:16:19,562 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:16:19,562 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 [2022-04-05 04:16:19,572 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 [2022-04-05 04:16:19,577 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 [2022-04-05 04:16:19,583 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 [2022-04-05 04:16:19,700 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 [2022-04-05 04:16:19,702 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