/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:15:55,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:15:55,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:15:55,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:15:55,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:15:55,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:15:55,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:15:55,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:15:55,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:15:55,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:15:55,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:15:55,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:15:55,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:15:55,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:15:55,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:15:55,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:15:55,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:15:55,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:15:55,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:15:55,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:15:55,476 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:15:55,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:15:55,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:15:55,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:15:55,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:15:55,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:15:55,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:15:55,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:15:55,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:15:55,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:15:55,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 04:15:55,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 04:15:55,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 04:15:55,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 04:15:55,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 04:15:55,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 04:15:55,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 04:15:55,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 04:15:55,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 04:15:55,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:15:55,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:15:55,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:15:55,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:15:55,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:15:55,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:15:55,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:15:55,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:15:55,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:15:55,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:15:55,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:15:55,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:15:55,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:15:55,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:15:55,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:15:55,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:15:55,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:15:55,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:55,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:15:55,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:15:55,506 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:15:55,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:15:55,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:15:55,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:15:55,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:15:55,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:15:55,703 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:15:55,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-04-05 04:15:55,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc039bc2/af8d83a152474c8f97a1fda0fa54785d/FLAG98a8baf2c [2022-04-05 04:15:56,184 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:15:56,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-04-05 04:15:56,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc039bc2/af8d83a152474c8f97a1fda0fa54785d/FLAG98a8baf2c [2022-04-05 04:15:56,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc039bc2/af8d83a152474c8f97a1fda0fa54785d [2022-04-05 04:15:56,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:15:56,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:15:56,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:56,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:15:56,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:15:56,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:56,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b251354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56, skipping insertion in model container [2022-04-05 04:15:56,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:56,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:15:56,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:15:56,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2022-04-05 04:15:56,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:56,892 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:15:56,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2022-04-05 04:15:56,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:15:56,973 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:15:56,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56 WrapperNode [2022-04-05 04:15:56,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:15:56,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:15:56,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:15:56,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:15:56,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:56,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:15:57,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:15:57,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:15:57,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:15:57,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (1/1) ... [2022-04-05 04:15:57,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:15:57,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:15:57,114 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 04:15:57,138 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 04:15:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:15:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:15:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:15:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:15:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:15:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:15:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:15:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-04-05 04:15:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:15:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:15:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:15:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:15:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:15:57,314 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:15:57,315 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:15:58,523 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:15:58,923 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-05 04:15:58,923 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-05 04:15:58,938 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:15:58,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:15:58,946 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:15:58,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:58 BoogieIcfgContainer [2022-04-05 04:15:58,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:15:58,949 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:15:58,949 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:15:58,950 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:15:58,952 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:58" (1/1) ... [2022-04-05 04:15:58,953 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:15:59,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:59 BasicIcfg [2022-04-05 04:15:59,003 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:15:59,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:15:59,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:15:59,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:15:59,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:15:56" (1/4) ... [2022-04-05 04:15:59,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7456f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:59, skipping insertion in model container [2022-04-05 04:15:59,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:15:56" (2/4) ... [2022-04-05 04:15:59,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7456f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:15:59, skipping insertion in model container [2022-04-05 04:15:59,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:15:58" (3/4) ... [2022-04-05 04:15:59,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7456f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:15:59, skipping insertion in model container [2022-04-05 04:15:59,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:15:59" (4/4) ... [2022-04-05 04:15:59,012 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.cJordan [2022-04-05 04:15:59,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:15:59,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:15:59,059 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:15:59,063 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 04:15:59,063 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:15:59,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 04:15:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-05 04:15:59,088 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:15:59,088 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 04:15:59,088 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:15:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:15:59,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1582464962, now seen corresponding path program 1 times [2022-04-05 04:15:59,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:15:59,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080956129] [2022-04-05 04:15:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:15:59,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:15:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:15:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:15:59,626 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 04:15:59,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:15:59,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080956129] [2022-04-05 04:15:59,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080956129] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:15:59,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:15:59,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:15:59,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108544451] [2022-04-05 04:15:59,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:15:59,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:15:59,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:15:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:15:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:15:59,658 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:01,695 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 04:16:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:02,092 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-04-05 04:16:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:02,094 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 04:16:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:02,099 INFO L225 Difference]: With dead ends: 142 [2022-04-05 04:16:02,099 INFO L226 Difference]: Without dead ends: 122 [2022-04-05 04:16:02,100 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 04:16:02,107 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:02,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:02,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-04-05 04:16:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-04-05 04:16:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-04-05 04:16:02,137 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-04-05 04:16:02,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:02,137 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-04-05 04:16:02,137 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 04:16:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-04-05 04:16:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-05 04:16:02,138 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:02,139 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] [2022-04-05 04:16:02,139 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:16:02,139 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash 826783867, now seen corresponding path program 1 times [2022-04-05 04:16:02,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:02,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501600945] [2022-04-05 04:16:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:02,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:02,367 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 04:16:02,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:02,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501600945] [2022-04-05 04:16:02,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501600945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:02,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:02,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:16:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507941489] [2022-04-05 04:16:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:02,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:02,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:02,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:02,370 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:04,388 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 04:16:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:04,626 INFO L93 Difference]: Finished difference Result 222 states and 326 transitions. [2022-04-05 04:16:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:04,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-04-05 04:16:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:04,628 INFO L225 Difference]: With dead ends: 222 [2022-04-05 04:16:04,629 INFO L226 Difference]: Without dead ends: 222 [2022-04-05 04:16:04,629 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 04:16:04,629 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:04,630 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:16:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-04-05 04:16:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-04-05 04:16:04,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-04-05 04:16:04,644 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-04-05 04:16:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:04,644 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-04-05 04:16:04,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-04-05 04:16:04,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-05 04:16:04,645 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:04,646 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] [2022-04-05 04:16:04,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:16:04,646 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:04,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2124287227, now seen corresponding path program 1 times [2022-04-05 04:16:04,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:04,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883340280] [2022-04-05 04:16:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:04,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:04,817 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 04:16:04,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:04,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883340280] [2022-04-05 04:16:04,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883340280] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:04,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:04,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:04,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771357999] [2022-04-05 04:16:04,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:04,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:04,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:04,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:04,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:04,819 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:06,827 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 04:16:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:07,230 INFO L93 Difference]: Finished difference Result 258 states and 380 transitions. [2022-04-05 04:16:07,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:07,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-04-05 04:16:07,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:07,232 INFO L225 Difference]: With dead ends: 258 [2022-04-05 04:16:07,232 INFO L226 Difference]: Without dead ends: 258 [2022-04-05 04:16:07,232 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 04:16:07,233 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:07,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:07,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-04-05 04:16:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2022-04-05 04:16:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-04-05 04:16:07,265 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-04-05 04:16:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:07,266 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-04-05 04:16:07,266 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:07,266 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-04-05 04:16:07,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:16:07,268 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:07,268 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:07,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:16:07,268 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash -11487624, now seen corresponding path program 2 times [2022-04-05 04:16:07,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:07,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182969780] [2022-04-05 04:16:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:07,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:16:07,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:07,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182969780] [2022-04-05 04:16:07,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182969780] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:07,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:07,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592013137] [2022-04-05 04:16:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:07,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:07,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:07,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:07,428 INFO L87 Difference]: Start difference. First operand 240 states and 356 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:09,440 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 04:16:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:09,852 INFO L93 Difference]: Finished difference Result 257 states and 378 transitions. [2022-04-05 04:16:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-04-05 04:16:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:09,857 INFO L225 Difference]: With dead ends: 257 [2022-04-05 04:16:09,857 INFO L226 Difference]: Without dead ends: 257 [2022-04-05 04:16:09,857 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 04:16:09,859 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 39 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:09,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 486 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-05 04:16:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-04-05 04:16:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4936170212765958) internal successors, (351), 235 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 355 transitions. [2022-04-05 04:16:09,877 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 355 transitions. Word has length 73 [2022-04-05 04:16:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:09,877 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 355 transitions. [2022-04-05 04:16:09,877 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 355 transitions. [2022-04-05 04:16:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-05 04:16:09,879 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:09,879 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:09,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:16:09,880 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash 350628440, now seen corresponding path program 1 times [2022-04-05 04:16:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:09,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934537687] [2022-04-05 04:16:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:09,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:10,132 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 04:16:10,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:10,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934537687] [2022-04-05 04:16:10,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934537687] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:10,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:10,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849363130] [2022-04-05 04:16:10,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:10,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:10,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:10,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:10,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:10,136 INFO L87 Difference]: Start difference. First operand 240 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:12,146 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 04:16:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:12,618 INFO L93 Difference]: Finished difference Result 423 states and 628 transitions. [2022-04-05 04:16:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:12,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-04-05 04:16:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:12,621 INFO L225 Difference]: With dead ends: 423 [2022-04-05 04:16:12,621 INFO L226 Difference]: Without dead ends: 423 [2022-04-05 04:16:12,622 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 04:16:12,622 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:12,623 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:16:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-04-05 04:16:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 264. [2022-04-05 04:16:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4903474903474903) internal successors, (386), 259 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 390 transitions. [2022-04-05 04:16:12,634 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 390 transitions. Word has length 73 [2022-04-05 04:16:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:12,634 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 390 transitions. [2022-04-05 04:16:12,634 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 390 transitions. [2022-04-05 04:16:12,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-05 04:16:12,636 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:12,637 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:12,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:16:12,637 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:12,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash -99560265, now seen corresponding path program 1 times [2022-04-05 04:16:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:12,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385024905] [2022-04-05 04:16:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:12,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:16:12,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:12,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385024905] [2022-04-05 04:16:12,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385024905] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:12,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:12,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:12,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131213733] [2022-04-05 04:16:12,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:12,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:12,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:12,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:12,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:12,827 INFO L87 Difference]: Start difference. First operand 264 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:14,838 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 04:16:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:15,246 INFO L93 Difference]: Finished difference Result 423 states and 625 transitions. [2022-04-05 04:16:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:15,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-04-05 04:16:15,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:15,248 INFO L225 Difference]: With dead ends: 423 [2022-04-05 04:16:15,248 INFO L226 Difference]: Without dead ends: 423 [2022-04-05 04:16:15,248 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 04:16:15,248 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:15,249 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-04-05 04:16:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 266. [2022-04-05 04:16:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-04-05 04:16:15,254 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 74 [2022-04-05 04:16:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:15,255 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-04-05 04:16:15,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-04-05 04:16:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-05 04:16:15,256 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:15,256 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:15,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:16:15,256 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:15,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1125243724, now seen corresponding path program 1 times [2022-04-05 04:16:15,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:15,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320912842] [2022-04-05 04:16:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:16:15,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:15,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320912842] [2022-04-05 04:16:15,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320912842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:15,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:15,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888299041] [2022-04-05 04:16:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:15,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:15,452 INFO L87 Difference]: Start difference. First operand 266 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:17,460 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 04:16:17,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:17,845 INFO L93 Difference]: Finished difference Result 283 states and 413 transitions. [2022-04-05 04:16:17,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:17,846 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 04:16:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:17,848 INFO L225 Difference]: With dead ends: 283 [2022-04-05 04:16:17,848 INFO L226 Difference]: Without dead ends: 283 [2022-04-05 04:16:17,848 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 04:16:17,848 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 33 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:17,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-05 04:16:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 266. [2022-04-05 04:16:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4789272030651341) internal successors, (386), 261 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 390 transitions. [2022-04-05 04:16:17,854 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 390 transitions. Word has length 75 [2022-04-05 04:16:17,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:17,854 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 390 transitions. [2022-04-05 04:16:17,854 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 04:16:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 390 transitions. [2022-04-05 04:16:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-05 04:16:17,855 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:17,855 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:17,855 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:16:17,855 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:17,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:17,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1472255796, now seen corresponding path program 1 times [2022-04-05 04:16:17,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:17,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482815932] [2022-04-05 04:16:17,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:17,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:18,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 04:16:18,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:18,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482815932] [2022-04-05 04:16:18,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482815932] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:18,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:18,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:18,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848434562] [2022-04-05 04:16:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:18,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:18,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:18,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:18,015 INFO L87 Difference]: Start difference. First operand 266 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:19,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:21,353 WARN L534 Checker$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 04:16:23,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:25,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:25,561 INFO L93 Difference]: Finished difference Result 423 states and 621 transitions. [2022-04-05 04:16:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:25,562 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 04:16:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:25,563 INFO L225 Difference]: With dead ends: 423 [2022-04-05 04:16:25,563 INFO L226 Difference]: Without dead ends: 423 [2022-04-05 04:16:25,564 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 04:16:25,564 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:25,564 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 04:16:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-04-05 04:16:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 270. [2022-04-05 04:16:25,569 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 04:16:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2022-04-05 04:16:25,570 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 76 [2022-04-05 04:16:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:25,570 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2022-04-05 04:16:25,570 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 04:16:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2022-04-05 04:16:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-05 04:16:25,571 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:25,571 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] [2022-04-05 04:16:25,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:16:25,571 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:25,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:25,572 INFO L85 PathProgramCache]: Analyzing trace with hash -928330680, now seen corresponding path program 1 times [2022-04-05 04:16:25,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:25,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531735215] [2022-04-05 04:16:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:25,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:25,730 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 04:16:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:25,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531735215] [2022-04-05 04:16:25,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531735215] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:25,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:25,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:16:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678735244] [2022-04-05 04:16:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:25,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:25,732 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:27,740 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 04:16:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:28,151 INFO L93 Difference]: Finished difference Result 405 states and 592 transitions. [2022-04-05 04:16:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:28,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-05 04:16:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:28,153 INFO L225 Difference]: With dead ends: 405 [2022-04-05 04:16:28,153 INFO L226 Difference]: Without dead ends: 405 [2022-04-05 04:16:28,153 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 04:16:28,154 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:28,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:28,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-04-05 04:16:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-04-05 04:16:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 1.47) internal successors, (588), 400 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 592 transitions. [2022-04-05 04:16:28,161 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 592 transitions. Word has length 77 [2022-04-05 04:16:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:28,162 INFO L478 AbstractCegarLoop]: Abstraction has 405 states and 592 transitions. [2022-04-05 04:16:28,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 592 transitions. [2022-04-05 04:16:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-05 04:16:28,162 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:28,163 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 04:16:28,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:16:28,163 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:28,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:28,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1739136347, now seen corresponding path program 1 times [2022-04-05 04:16:28,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:28,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913114624] [2022-04-05 04:16:28,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:28,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:28,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:28,270 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 04:16:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913114624] [2022-04-05 04:16:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913114624] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:28,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:16:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870590940] [2022-04-05 04:16:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:28,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:28,272 INFO L87 Difference]: Start difference. First operand 405 states and 592 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:30,284 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 04:16:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:30,535 INFO L93 Difference]: Finished difference Result 429 states and 624 transitions. [2022-04-05 04:16:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:30,536 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 04:16:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:30,537 INFO L225 Difference]: With dead ends: 429 [2022-04-05 04:16:30,537 INFO L226 Difference]: Without dead ends: 429 [2022-04-05 04:16:30,537 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 04:16:30,538 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:30,538 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-04-05 04:16:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-04-05 04:16:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4622641509433962) internal successors, (620), 424 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 624 transitions. [2022-04-05 04:16:30,545 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 624 transitions. Word has length 78 [2022-04-05 04:16:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:30,545 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 624 transitions. [2022-04-05 04:16:30,545 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 04:16:30,546 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 624 transitions. [2022-04-05 04:16:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-05 04:16:30,546 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:30,546 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] [2022-04-05 04:16:30,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:16:30,547 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash -820885621, now seen corresponding path program 1 times [2022-04-05 04:16:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:30,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694759147] [2022-04-05 04:16:30,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:30,701 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 04:16:30,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:30,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694759147] [2022-04-05 04:16:30,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694759147] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:30,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:30,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:16:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044114070] [2022-04-05 04:16:30,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:30,702 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:30,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:30,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:30,703 INFO L87 Difference]: Start difference. First operand 429 states and 624 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:32,711 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 04:16:33,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:33,055 INFO L93 Difference]: Finished difference Result 563 states and 820 transitions. [2022-04-05 04:16:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:33,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-04-05 04:16:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:33,057 INFO L225 Difference]: With dead ends: 563 [2022-04-05 04:16:33,057 INFO L226 Difference]: Without dead ends: 563 [2022-04-05 04:16:33,057 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 04:16:33,058 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:33,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-04-05 04:16:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-04-05 04:16:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4623655913978495) internal successors, (816), 558 states have internal predecessors, (816), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 820 transitions. [2022-04-05 04:16:33,066 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 820 transitions. Word has length 97 [2022-04-05 04:16:33,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:33,066 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 820 transitions. [2022-04-05 04:16:33,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 820 transitions. [2022-04-05 04:16:33,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 04:16:33,068 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:33,068 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] [2022-04-05 04:16:33,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:16:33,068 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1372430939, now seen corresponding path program 1 times [2022-04-05 04:16:33,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:33,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699435358] [2022-04-05 04:16:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:33,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:33,202 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 04:16:33,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:33,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699435358] [2022-04-05 04:16:33,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699435358] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:33,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:33,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:16:33,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463889043] [2022-04-05 04:16:33,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:33,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:33,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:33,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:16:33,203 INFO L87 Difference]: Start difference. First operand 563 states and 820 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:35,211 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 04:16:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:35,609 INFO L93 Difference]: Finished difference Result 696 states and 1014 transitions. [2022-04-05 04:16:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:35,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-05 04:16:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:35,612 INFO L225 Difference]: With dead ends: 696 [2022-04-05 04:16:35,612 INFO L226 Difference]: Without dead ends: 696 [2022-04-05 04:16:35,612 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 04:16:35,613 INFO L913 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:35,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 474 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-04-05 04:16:35,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2022-04-05 04:16:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 691 states have (on average 1.4616497829232995) internal successors, (1010), 691 states have internal predecessors, (1010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1014 transitions. [2022-04-05 04:16:35,623 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1014 transitions. Word has length 118 [2022-04-05 04:16:35,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:35,623 INFO L478 AbstractCegarLoop]: Abstraction has 696 states and 1014 transitions. [2022-04-05 04:16:35,623 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:35,624 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1014 transitions. [2022-04-05 04:16:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-04-05 04:16:35,625 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:35,625 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:35,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:16:35,625 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:35,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:35,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1555623355, now seen corresponding path program 1 times [2022-04-05 04:16:35,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:35,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550746137] [2022-04-05 04:16:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:16:35,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:35,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550746137] [2022-04-05 04:16:35,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550746137] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:35,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:35,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855187369] [2022-04-05 04:16:35,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:35,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:35,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:35,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:35,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:35,827 INFO L87 Difference]: Start difference. First operand 696 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:37,847 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 04:16:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:38,220 INFO L93 Difference]: Finished difference Result 1138 states and 1653 transitions. [2022-04-05 04:16:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:38,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2022-04-05 04:16:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:38,224 INFO L225 Difference]: With dead ends: 1138 [2022-04-05 04:16:38,224 INFO L226 Difference]: Without dead ends: 1138 [2022-04-05 04:16:38,224 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 04:16:38,224 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:38,225 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-04-05 04:16:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 785. [2022-04-05 04:16:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 780 states have (on average 1.4705128205128206) internal successors, (1147), 780 states have internal predecessors, (1147), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1151 transitions. [2022-04-05 04:16:38,239 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1151 transitions. Word has length 137 [2022-04-05 04:16:38,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:38,239 INFO L478 AbstractCegarLoop]: Abstraction has 785 states and 1151 transitions. [2022-04-05 04:16:38,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1151 transitions. [2022-04-05 04:16:38,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-04-05 04:16:38,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:38,241 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] [2022-04-05 04:16:38,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:16:38,241 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:38,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:38,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1531425766, now seen corresponding path program 1 times [2022-04-05 04:16:38,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:38,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564618269] [2022-04-05 04:16:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:38,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:38,459 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 04:16:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:38,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564618269] [2022-04-05 04:16:38,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564618269] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:38,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618432054] [2022-04-05 04:16:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:38,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:16:38,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:16:38,479 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 04:16:38,503 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 04:16:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:39,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:16:39,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:16:39,271 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:16:39,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-04-05 04:16:39,291 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 04:16:39,298 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 04:16:39,307 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 04:16:39,476 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 04:16:39,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 21 [2022-04-05 04:16:39,484 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 04:16:39,500 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 04:16:39,531 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:16:39,531 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 04:16:39,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 04:16:39,638 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:16:39,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 04:16:39,674 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 04:16:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 66 proven. 50 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-05 04:16:39,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:16:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-05 04:16:39,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618432054] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:16:39,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:16:39,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:16:39,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779500018] [2022-04-05 04:16:39,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:39,831 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:16:39,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:39,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:16:39,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:16:39,831 INFO L87 Difference]: Start difference. First operand 785 states and 1151 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:41,844 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 04:16:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:42,162 INFO L93 Difference]: Finished difference Result 1248 states and 1813 transitions. [2022-04-05 04:16:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:16:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2022-04-05 04:16:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:42,166 INFO L225 Difference]: With dead ends: 1248 [2022-04-05 04:16:42,166 INFO L226 Difference]: Without dead ends: 1248 [2022-04-05 04:16:42,166 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:16:42,166 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 101 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:42,167 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 549 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-04-05 04:16:42,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 915. [2022-04-05 04:16:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 910 states have (on average 1.4802197802197803) internal successors, (1347), 910 states have internal predecessors, (1347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1351 transitions. [2022-04-05 04:16:42,182 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1351 transitions. Word has length 137 [2022-04-05 04:16:42,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:42,182 INFO L478 AbstractCegarLoop]: Abstraction has 915 states and 1351 transitions. [2022-04-05 04:16:42,182 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1351 transitions. [2022-04-05 04:16:42,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-04-05 04:16:42,184 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:42,184 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:42,208 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 04:16:42,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-05 04:16:42,396 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1598432519, now seen corresponding path program 1 times [2022-04-05 04:16:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:42,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693091039] [2022-04-05 04:16:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:42,541 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 04:16:42,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:42,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693091039] [2022-04-05 04:16:42,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693091039] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:42,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:42,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:42,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927936055] [2022-04-05 04:16:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:42,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:42,544 INFO L87 Difference]: Start difference. First operand 915 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:44,553 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 04:16:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:44,976 INFO L93 Difference]: Finished difference Result 1288 states and 1879 transitions. [2022-04-05 04:16:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:44,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2022-04-05 04:16:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:44,980 INFO L225 Difference]: With dead ends: 1288 [2022-04-05 04:16:44,980 INFO L226 Difference]: Without dead ends: 1288 [2022-04-05 04:16:44,981 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 04:16:44,981 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:44,981 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-04-05 04:16:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 927. [2022-04-05 04:16:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 922 states have (on average 1.4718004338394794) internal successors, (1357), 922 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1361 transitions. [2022-04-05 04:16:44,996 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1361 transitions. Word has length 137 [2022-04-05 04:16:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:44,996 INFO L478 AbstractCegarLoop]: Abstraction has 927 states and 1361 transitions. [2022-04-05 04:16:44,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:44,996 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1361 transitions. [2022-04-05 04:16:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-05 04:16:44,998 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:44,998 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:44,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:16:44,998 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:44,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash 62374513, now seen corresponding path program 1 times [2022-04-05 04:16:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:44,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150774612] [2022-04-05 04:16:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 04:16:45,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:45,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150774612] [2022-04-05 04:16:45,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150774612] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:45,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:45,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584482065] [2022-04-05 04:16:45,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:45,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:45,158 INFO L87 Difference]: Start difference. First operand 927 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:47,171 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 04:16:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:47,515 INFO L93 Difference]: Finished difference Result 1283 states and 1859 transitions. [2022-04-05 04:16:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:47,516 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 04:16:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:47,519 INFO L225 Difference]: With dead ends: 1283 [2022-04-05 04:16:47,519 INFO L226 Difference]: Without dead ends: 1283 [2022-04-05 04:16:47,519 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 04:16:47,520 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:47,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-04-05 04:16:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 931. [2022-04-05 04:16:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.458963282937365) internal successors, (1351), 926 states have internal predecessors, (1351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:47,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1355 transitions. [2022-04-05 04:16:47,535 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1355 transitions. Word has length 138 [2022-04-05 04:16:47,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:47,536 INFO L478 AbstractCegarLoop]: Abstraction has 931 states and 1355 transitions. [2022-04-05 04:16:47,536 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 04:16:47,536 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1355 transitions. [2022-04-05 04:16:47,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-05 04:16:47,537 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:47,537 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:47,537 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:16:47,538 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:47,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash -879760050, now seen corresponding path program 1 times [2022-04-05 04:16:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:47,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999736327] [2022-04-05 04:16:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-05 04:16:47,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:47,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999736327] [2022-04-05 04:16:47,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999736327] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:47,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:47,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583135808] [2022-04-05 04:16:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:47,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:47,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:47,694 INFO L87 Difference]: Start difference. First operand 931 states and 1355 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:49,713 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 04:16:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:50,108 INFO L93 Difference]: Finished difference Result 1383 states and 1985 transitions. [2022-04-05 04:16:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:50,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-04-05 04:16:50,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:50,112 INFO L225 Difference]: With dead ends: 1383 [2022-04-05 04:16:50,112 INFO L226 Difference]: Without dead ends: 1383 [2022-04-05 04:16:50,113 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 04:16:50,113 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 111 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:50,113 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 494 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:50,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-04-05 04:16:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1011. [2022-04-05 04:16:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1006 states have (on average 1.4433399602385686) internal successors, (1452), 1006 states have internal predecessors, (1452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1456 transitions. [2022-04-05 04:16:50,133 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1456 transitions. Word has length 152 [2022-04-05 04:16:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:50,134 INFO L478 AbstractCegarLoop]: Abstraction has 1011 states and 1456 transitions. [2022-04-05 04:16:50,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1456 transitions. [2022-04-05 04:16:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:16:50,136 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:50,137 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:50,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:16:50,137 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:50,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash 456220279, now seen corresponding path program 1 times [2022-04-05 04:16:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:50,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743975161] [2022-04-05 04:16:50,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-05 04:16:50,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:50,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743975161] [2022-04-05 04:16:50,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743975161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:50,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:50,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474329717] [2022-04-05 04:16:50,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:50,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:50,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:50,284 INFO L87 Difference]: Start difference. First operand 1011 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:52,292 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 04:16:52,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:52,700 INFO L93 Difference]: Finished difference Result 1346 states and 1933 transitions. [2022-04-05 04:16:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:52,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-05 04:16:52,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:52,710 INFO L225 Difference]: With dead ends: 1346 [2022-04-05 04:16:52,710 INFO L226 Difference]: Without dead ends: 1346 [2022-04-05 04:16:52,710 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 04:16:52,711 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 89 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:52,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 553 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-04-05 04:16:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1079. [2022-04-05 04:16:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.441340782122905) internal successors, (1548), 1074 states have internal predecessors, (1548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1552 transitions. [2022-04-05 04:16:52,726 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1552 transitions. Word has length 153 [2022-04-05 04:16:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:52,726 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1552 transitions. [2022-04-05 04:16:52,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1552 transitions. [2022-04-05 04:16:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-05 04:16:52,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:52,729 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:52,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:16:52,729 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash 428982347, now seen corresponding path program 2 times [2022-04-05 04:16:52,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142179539] [2022-04-05 04:16:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:52,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 04:16:52,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:52,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142179539] [2022-04-05 04:16:52,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142179539] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:52,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:52,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:52,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822945880] [2022-04-05 04:16:52,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:52,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:52,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:52,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:52,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:52,894 INFO L87 Difference]: Start difference. First operand 1079 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:54,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:16:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:55,310 INFO L93 Difference]: Finished difference Result 1342 states and 1925 transitions. [2022-04-05 04:16:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-04-05 04:16:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:55,314 INFO L225 Difference]: With dead ends: 1342 [2022-04-05 04:16:55,314 INFO L226 Difference]: Without dead ends: 1342 [2022-04-05 04:16:55,314 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 04:16:55,314 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:55,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 551 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:16:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-04-05 04:16:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1079. [2022-04-05 04:16:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4376163873370578) internal successors, (1544), 1074 states have internal predecessors, (1544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:55,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1548 transitions. [2022-04-05 04:16:55,329 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1548 transitions. Word has length 166 [2022-04-05 04:16:55,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:55,329 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1548 transitions. [2022-04-05 04:16:55,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1548 transitions. [2022-04-05 04:16:55,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-04-05 04:16:55,331 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:55,331 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:55,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:16:55,331 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:55,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2142134073, now seen corresponding path program 1 times [2022-04-05 04:16:55,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:55,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019068573] [2022-04-05 04:16:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:55,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:55,485 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 04:16:55,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:55,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019068573] [2022-04-05 04:16:55,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019068573] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:55,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:55,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:55,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938658267] [2022-04-05 04:16:55,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:55,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:55,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:55,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:55,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:55,487 INFO L87 Difference]: Start difference. First operand 1079 states and 1548 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:57,495 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 04:16:57,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:16:57,852 INFO L93 Difference]: Finished difference Result 1431 states and 2029 transitions. [2022-04-05 04:16:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:16:57,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-04-05 04:16:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:16:57,855 INFO L225 Difference]: With dead ends: 1431 [2022-04-05 04:16:57,855 INFO L226 Difference]: Without dead ends: 1431 [2022-04-05 04:16:57,856 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 04:16:57,856 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:16:57,856 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:16:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2022-04-05 04:16:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1079. [2022-04-05 04:16:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4162011173184357) internal successors, (1521), 1074 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1525 transitions. [2022-04-05 04:16:57,869 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1525 transitions. Word has length 168 [2022-04-05 04:16:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:16:57,869 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1525 transitions. [2022-04-05 04:16:57,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:16:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1525 transitions. [2022-04-05 04:16:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-05 04:16:57,871 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:16:57,871 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:16:57,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:16:57,871 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:16:57,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:16:57,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1527681891, now seen corresponding path program 1 times [2022-04-05 04:16:57,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:16:57,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892876281] [2022-04-05 04:16:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:16:57,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:16:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:16:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:16:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-05 04:16:58,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:16:58,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892876281] [2022-04-05 04:16:58,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892876281] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:16:58,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:16:58,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:16:58,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074053695] [2022-04-05 04:16:58,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:16:58,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:16:58,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:16:58,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:16:58,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:16:58,010 INFO L87 Difference]: Start difference. First operand 1079 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:00,024 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 04:17:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:00,365 INFO L93 Difference]: Finished difference Result 1426 states and 2013 transitions. [2022-04-05 04:17:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:00,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-05 04:17:00,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:00,368 INFO L225 Difference]: With dead ends: 1426 [2022-04-05 04:17:00,368 INFO L226 Difference]: Without dead ends: 1426 [2022-04-05 04:17:00,369 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 04:17:00,369 INFO L913 BasicCegarLoop]: 101 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:00,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-04-05 04:17:00,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1088. [2022-04-05 04:17:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1083 states have (on average 1.4118190212373039) internal successors, (1529), 1083 states have internal predecessors, (1529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1533 transitions. [2022-04-05 04:17:00,386 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1533 transitions. Word has length 172 [2022-04-05 04:17:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:00,386 INFO L478 AbstractCegarLoop]: Abstraction has 1088 states and 1533 transitions. [2022-04-05 04:17:00,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1533 transitions. [2022-04-05 04:17:00,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 04:17:00,389 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:00,389 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:00,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:17:00,389 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:00,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:00,390 INFO L85 PathProgramCache]: Analyzing trace with hash -337729248, now seen corresponding path program 1 times [2022-04-05 04:17:00,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:00,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323640565] [2022-04-05 04:17:00,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:00,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-05 04:17:00,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:00,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323640565] [2022-04-05 04:17:00,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323640565] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:00,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:00,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:00,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352817743] [2022-04-05 04:17:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:00,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:00,565 INFO L87 Difference]: Start difference. First operand 1088 states and 1533 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:02,574 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 04:17:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:02,831 INFO L93 Difference]: Finished difference Result 1142 states and 1596 transitions. [2022-04-05 04:17:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:02,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 04:17:02,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:02,834 INFO L225 Difference]: With dead ends: 1142 [2022-04-05 04:17:02,834 INFO L226 Difference]: Without dead ends: 1142 [2022-04-05 04:17:02,834 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 04:17:02,834 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:02,835 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 471 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-04-05 04:17:02,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1116. [2022-04-05 04:17:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4086408640864085) internal successors, (1565), 1111 states have internal predecessors, (1565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1569 transitions. [2022-04-05 04:17:02,845 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1569 transitions. Word has length 173 [2022-04-05 04:17:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:02,845 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1569 transitions. [2022-04-05 04:17:02,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1569 transitions. [2022-04-05 04:17:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-05 04:17:02,847 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:02,848 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:02,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:17:02,848 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:02,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1191051994, now seen corresponding path program 1 times [2022-04-05 04:17:02,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:02,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816464313] [2022-04-05 04:17:02,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:02,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 105 proven. 5 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-04-05 04:17:03,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:03,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816464313] [2022-04-05 04:17:03,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816464313] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:03,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687444124] [2022-04-05 04:17:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:03,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:03,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:03,026 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 04:17:03,052 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 04:17:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:03,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:03,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:03,890 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:03,891 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 04:17:03,895 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 04:17:03,899 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 04:17:03,904 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 04:17:04,011 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:17:04,019 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 04:17:04,047 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:04,047 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 04:17:04,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 04:17:04,207 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:04,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 04:17:04,255 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 04:17:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 99 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-04-05 04:17:04,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-04-05 04:17:04,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687444124] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:04,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:04,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 13 [2022-04-05 04:17:04,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397521803] [2022-04-05 04:17:04,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:04,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:04,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:04,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:04,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:17:04,463 INFO L87 Difference]: Start difference. First operand 1116 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:06,469 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 04:17:06,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:06,701 INFO L93 Difference]: Finished difference Result 1559 states and 2184 transitions. [2022-04-05 04:17:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:06,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-04-05 04:17:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:06,706 INFO L225 Difference]: With dead ends: 1559 [2022-04-05 04:17:06,706 INFO L226 Difference]: Without dead ends: 1559 [2022-04-05 04:17:06,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-05 04:17:06,707 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 93 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:06,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 322 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2022-04-05 04:17:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1111. [2022-04-05 04:17:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1106 states have (on average 1.410488245931284) internal successors, (1560), 1106 states have internal predecessors, (1560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1564 transitions. [2022-04-05 04:17:06,724 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1564 transitions. Word has length 175 [2022-04-05 04:17:06,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:06,725 INFO L478 AbstractCegarLoop]: Abstraction has 1111 states and 1564 transitions. [2022-04-05 04:17:06,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1564 transitions. [2022-04-05 04:17:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-04-05 04:17:06,728 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:06,728 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:06,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:06,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-04-05 04:17:06,939 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:06,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:06,939 INFO L85 PathProgramCache]: Analyzing trace with hash 346064602, now seen corresponding path program 1 times [2022-04-05 04:17:06,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:06,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480524107] [2022-04-05 04:17:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:06,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 247 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-04-05 04:17:07,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:07,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480524107] [2022-04-05 04:17:07,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480524107] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:07,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734078296] [2022-04-05 04:17:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:07,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:07,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:07,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:17:07,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 04:17:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:07,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:17:07,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:17:07,984 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:17:07,984 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 04:17:07,988 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 04:17:07,995 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 04:17:08,000 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 04:17:08,125 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:17:08,137 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 04:17:08,139 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 04:17:08,174 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:17:08,174 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 04:17:08,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 04:17:08,347 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:17:08,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 04:17:08,381 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 04:17:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 99 proven. 70 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-04-05 04:17:08,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:17:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-04-05 04:17:08,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734078296] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:08,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:17:08,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:17:08,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811373353] [2022-04-05 04:17:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:08,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:17:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:17:08,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:17:08,599 INFO L87 Difference]: Start difference. First operand 1111 states and 1564 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:10,607 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 04:17:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:10,822 INFO L93 Difference]: Finished difference Result 1460 states and 2060 transitions. [2022-04-05 04:17:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:17:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-04-05 04:17:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:10,826 INFO L225 Difference]: With dead ends: 1460 [2022-04-05 04:17:10,826 INFO L226 Difference]: Without dead ends: 1460 [2022-04-05 04:17:10,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:17:10,827 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 71 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:10,827 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 497 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:17:10,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-04-05 04:17:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1241. [2022-04-05 04:17:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.4037216828478964) internal successors, (1735), 1236 states have internal predecessors, (1735), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1739 transitions. [2022-04-05 04:17:10,852 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1739 transitions. Word has length 176 [2022-04-05 04:17:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:10,852 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1739 transitions. [2022-04-05 04:17:10,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1739 transitions. [2022-04-05 04:17:10,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-04-05 04:17:10,854 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:10,854 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:10,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 04:17:11,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:11,067 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:11,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1731144741, now seen corresponding path program 1 times [2022-04-05 04:17:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:11,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883799965] [2022-04-05 04:17:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:11,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:11,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-04-05 04:17:11,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:11,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883799965] [2022-04-05 04:17:11,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883799965] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:17:11,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:17:11,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:17:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792529297] [2022-04-05 04:17:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:17:11,242 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:17:11,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:17:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:17:11,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:17:11,242 INFO L87 Difference]: Start difference. First operand 1241 states and 1739 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:13,255 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 04:17:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:17:13,537 INFO L93 Difference]: Finished difference Result 1276 states and 1776 transitions. [2022-04-05 04:17:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:17:13,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-04-05 04:17:13,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:17:13,541 INFO L225 Difference]: With dead ends: 1276 [2022-04-05 04:17:13,541 INFO L226 Difference]: Without dead ends: 1276 [2022-04-05 04:17:13,541 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 04:17:13,541 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:17:13,541 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 333 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:17:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-04-05 04:17:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1241. [2022-04-05 04:17:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.4004854368932038) internal successors, (1731), 1236 states have internal predecessors, (1731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:17:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1735 transitions. [2022-04-05 04:17:13,553 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1735 transitions. Word has length 176 [2022-04-05 04:17:13,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:17:13,553 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1735 transitions. [2022-04-05 04:17:13,553 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 04:17:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1735 transitions. [2022-04-05 04:17:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-04-05 04:17:13,555 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:17:13,555 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:17:13,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:17:13,555 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:17:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:17:13,556 INFO L85 PathProgramCache]: Analyzing trace with hash -956609283, now seen corresponding path program 2 times [2022-04-05 04:17:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:17:13,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543632439] [2022-04-05 04:17:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:17:13,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:17:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:17:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:17:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 300 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-04-05 04:17:13,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:17:13,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543632439] [2022-04-05 04:17:13,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543632439] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:17:13,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796098714] [2022-04-05 04:17:13,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-05 04:17:13,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:17:13,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:17:13,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:17:13,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 04:18:17,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-05 04:18:17,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-05 04:18:17,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:18:17,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:18:17,578 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:18:17,578 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 04:18:17,582 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 04:18:17,587 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 04:18:17,593 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 04:18:17,717 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:18:17,726 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 04:18:17,753 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:18:17,753 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 04:18:17,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 04:18:17,905 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:18:17,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 04:18:17,930 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 04:18:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 162 proven. 66 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-04-05 04:18:17,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:18:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-04-05 04:18:18,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796098714] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:18,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:18:18,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-05 04:18:18,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619117463] [2022-04-05 04:18:18,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:18,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:18:18,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:18:18,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:18:18,179 INFO L87 Difference]: Start difference. First operand 1241 states and 1735 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:20,186 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 04:18:20,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:20,433 INFO L93 Difference]: Finished difference Result 1574 states and 2186 transitions. [2022-04-05 04:18:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:18:20,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 190 [2022-04-05 04:18:20,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:20,438 INFO L225 Difference]: With dead ends: 1574 [2022-04-05 04:18:20,438 INFO L226 Difference]: Without dead ends: 1574 [2022-04-05 04:18:20,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:18:20,439 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 107 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:20,439 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 306 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 04:18:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-04-05 04:18:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1241. [2022-04-05 04:18:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1236 states have (on average 1.3810679611650485) internal successors, (1707), 1236 states have internal predecessors, (1707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1711 transitions. [2022-04-05 04:18:20,466 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1711 transitions. Word has length 190 [2022-04-05 04:18:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:20,467 INFO L478 AbstractCegarLoop]: Abstraction has 1241 states and 1711 transitions. [2022-04-05 04:18:20,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1711 transitions. [2022-04-05 04:18:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-04-05 04:18:20,469 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:20,469 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:20,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-05 04:18:20,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-04-05 04:18:20,683 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:20,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:20,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1101207277, now seen corresponding path program 1 times [2022-04-05 04:18:20,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:20,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161298067] [2022-04-05 04:18:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-04-05 04:18:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:20,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161298067] [2022-04-05 04:18:20,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161298067] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:18:20,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:18:20,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:18:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153090934] [2022-04-05 04:18:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:18:20,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:18:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:18:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:18:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:18:20,898 INFO L87 Difference]: Start difference. First operand 1241 states and 1711 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:22,907 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 04:18:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:18:23,172 INFO L93 Difference]: Finished difference Result 1380 states and 1882 transitions. [2022-04-05 04:18:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:18:23,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-04-05 04:18:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:18:23,176 INFO L225 Difference]: With dead ends: 1380 [2022-04-05 04:18:23,176 INFO L226 Difference]: Without dead ends: 1380 [2022-04-05 04:18:23,176 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 04:18:23,176 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 16 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:18:23,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 464 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:18:23,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-04-05 04:18:23,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1351. [2022-04-05 04:18:23,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1346 states have (on average 1.3722139673105498) internal successors, (1847), 1346 states have internal predecessors, (1847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:18:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1851 transitions. [2022-04-05 04:18:23,188 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1851 transitions. Word has length 194 [2022-04-05 04:18:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:18:23,188 INFO L478 AbstractCegarLoop]: Abstraction has 1351 states and 1851 transitions. [2022-04-05 04:18:23,188 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 04:18:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1851 transitions. [2022-04-05 04:18:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-05 04:18:23,190 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:18:23,190 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:18:23,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:18:23,190 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:18:23,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:18:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash 55419958, now seen corresponding path program 1 times [2022-04-05 04:18:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:18:23,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054251478] [2022-04-05 04:18:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:18:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:18:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:23,378 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 352 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-04-05 04:18:23,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:18:23,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054251478] [2022-04-05 04:18:23,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054251478] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:18:23,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382182227] [2022-04-05 04:18:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:18:23,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:18:23,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:18:23,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:18:23,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 04:18:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:18:24,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-05 04:18:24,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:18:24,347 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-05 04:18:24,348 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 04:18:24,351 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 04:18:24,358 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 04:18:24,362 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