/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:39:08,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:39:08,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:39:08,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:39:08,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:39:08,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:39:08,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:39:08,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:39:08,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:39:08,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:39:08,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:39:08,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:39:08,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:39:08,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:39:08,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:39:08,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:39:08,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:39:08,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:39:08,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:39:08,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:39:08,076 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:39:08,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:39:08,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:39:08,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:39:08,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:39:08,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:39:08,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:39:08,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:39:08,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:39:08,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:39:08,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:39:08,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:39:08,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:39:08,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:39:08,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:39:08,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:39:08,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:39:08,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:39:08,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:39:08,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:39:08,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:39:08,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:39:08,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:39:08,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:39:08,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:39:08,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:39:08,106 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:39:08,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:39:08,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:39:08,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:39:08,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:39:08,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:39:08,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:39:08,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:39:08,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:39:08,108 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:39:08,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:39:08,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:39:08,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:39:08,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:39:08,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:39:08,303 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:39:08,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-04-06 08:39:08,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/623b993ea/af275e55bda746eebec5aded0e351526/FLAG558b342e4 [2022-04-06 08:39:08,821 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:39:08,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-04-06 08:39:08,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/623b993ea/af275e55bda746eebec5aded0e351526/FLAG558b342e4 [2022-04-06 08:39:08,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/623b993ea/af275e55bda746eebec5aded0e351526 [2022-04-06 08:39:08,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:39:08,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:39:08,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:39:08,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:39:08,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:39:08,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:39:08" (1/1) ... [2022-04-06 08:39:08,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3019d459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:08, skipping insertion in model container [2022-04-06 08:39:08,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:39:08" (1/1) ... [2022-04-06 08:39:08,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:39:08,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:39:09,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2022-04-06 08:39:09,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:39:09,301 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:39:09,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c[65398,65411] [2022-04-06 08:39:09,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:39:09,441 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:39:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09 WrapperNode [2022-04-06 08:39:09,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:39:09,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:39:09,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:39:09,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:39:09,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:39:09,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:39:09,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:39:09,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:39:09,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (1/1) ... [2022-04-06 08:39:09,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:39:09,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:39:09,587 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) [2022-04-06 08:39:09,610 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 [2022-04-06 08:39:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:39:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:39:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:39:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:39:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:39:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:39:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:39:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:39:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:39:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-04-06 08:39:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:39:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:39:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:39:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:39:09,799 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:39:09,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:39:10,805 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:39:11,127 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-06 08:39:11,128 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-06 08:39:11,142 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:39:11,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:39:11,147 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:39:11,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:39:11 BoogieIcfgContainer [2022-04-06 08:39:11,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:39:11,150 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:39:11,150 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:39:11,151 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:39:11,169 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:39:11" (1/1) ... [2022-04-06 08:39:11,170 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:39:11,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:39:11 BasicIcfg [2022-04-06 08:39:11,209 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:39:11,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:39:11,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:39:11,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:39:11,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:39:08" (1/4) ... [2022-04-06 08:39:11,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3667e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:39:11, skipping insertion in model container [2022-04-06 08:39:11,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:39:09" (2/4) ... [2022-04-06 08:39:11,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3667e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:39:11, skipping insertion in model container [2022-04-06 08:39:11,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:39:11" (3/4) ... [2022-04-06 08:39:11,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3667e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:39:11, skipping insertion in model container [2022-04-06 08:39:11,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:39:11" (4/4) ... [2022-04-06 08:39:11,214 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.cJordan [2022-04-06 08:39:11,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:39:11,217 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:39:11,266 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:39:11,273 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 [2022-04-06 08:39:11,274 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:39:11,294 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) [2022-04-06 08:39:11,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 08:39:11,302 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:11,302 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] [2022-04-06 08:39:11,303 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:11,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1711753218, now seen corresponding path program 1 times [2022-04-06 08:39:11,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:11,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040330610] [2022-04-06 08:39:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:11,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:39:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040330610] [2022-04-06 08:39:11,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040330610] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:11,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:11,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257317097] [2022-04-06 08:39:11,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:11,708 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:11,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:11,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:11,741 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) [2022-04-06 08:39:13,769 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 [] [2022-04-06 08:39:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:14,168 INFO L93 Difference]: Finished difference Result 142 states and 227 transitions. [2022-04-06 08:39:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:14,170 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 [2022-04-06 08:39:14,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:14,175 INFO L225 Difference]: With dead ends: 142 [2022-04-06 08:39:14,175 INFO L226 Difference]: Without dead ends: 122 [2022-04-06 08:39:14,176 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 [2022-04-06 08:39:14,185 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 [2022-04-06 08:39:14,185 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] [2022-04-06 08:39:14,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-04-06 08:39:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-04-06 08:39:14,216 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) [2022-04-06 08:39:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-04-06 08:39:14,218 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-04-06 08:39:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:14,219 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-04-06 08:39:14,219 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) [2022-04-06 08:39:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-04-06 08:39:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-06 08:39:14,220 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:14,220 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] [2022-04-06 08:39:14,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:39:14,220 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1339052155, now seen corresponding path program 1 times [2022-04-06 08:39:14,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:14,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677715394] [2022-04-06 08:39:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:14,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:14,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:14,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677715394] [2022-04-06 08:39:14,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677715394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:14,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:14,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:39:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573689011] [2022-04-06 08:39:14,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:14,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:39:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:39:14,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:14,486 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) [2022-04-06 08:39:16,500 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 [] [2022-04-06 08:39:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:16,756 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2022-04-06 08:39:16,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:39:16,756 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 [2022-04-06 08:39:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:16,758 INFO L225 Difference]: With dead ends: 221 [2022-04-06 08:39:16,758 INFO L226 Difference]: Without dead ends: 221 [2022-04-06 08:39:16,758 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 [2022-04-06 08:39:16,759 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:16,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:39:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-04-06 08:39:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-04-06 08:39:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-04-06 08:39:16,770 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-04-06 08:39:16,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:16,770 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-04-06 08:39:16,770 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) [2022-04-06 08:39:16,770 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-04-06 08:39:16,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-06 08:39:16,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:16,772 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] [2022-04-06 08:39:16,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:39:16,772 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:16,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1096281917, now seen corresponding path program 1 times [2022-04-06 08:39:16,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:16,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088149933] [2022-04-06 08:39:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:16,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:17,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:17,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088149933] [2022-04-06 08:39:17,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088149933] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:17,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:17,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917596180] [2022-04-06 08:39:17,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:17,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:17,006 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:19,027 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 [] [2022-04-06 08:39:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:19,398 INFO L93 Difference]: Finished difference Result 257 states and 379 transitions. [2022-04-06 08:39:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:19,399 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 [2022-04-06 08:39:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:19,401 INFO L225 Difference]: With dead ends: 257 [2022-04-06 08:39:19,401 INFO L226 Difference]: Without dead ends: 257 [2022-04-06 08:39:19,401 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 [2022-04-06 08:39:19,402 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:19,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-06 08:39:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-04-06 08:39:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5) internal successors, (351), 234 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-04-06 08:39:19,410 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-04-06 08:39:19,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:19,410 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-04-06 08:39:19,411 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) [2022-04-06 08:39:19,411 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-04-06 08:39:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-06 08:39:19,412 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:19,412 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] [2022-04-06 08:39:19,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:39:19,412 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:19,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1707240826, now seen corresponding path program 2 times [2022-04-06 08:39:19,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:19,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865623351] [2022-04-06 08:39:19,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:19,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:19,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:19,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:19,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865623351] [2022-04-06 08:39:19,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865623351] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:19,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:19,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:19,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306610480] [2022-04-06 08:39:19,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:19,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:19,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:19,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:19,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:19,645 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:21,654 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 [] [2022-04-06 08:39:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:22,003 INFO L93 Difference]: Finished difference Result 256 states and 377 transitions. [2022-04-06 08:39:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:22,004 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 [2022-04-06 08:39:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:22,005 INFO L225 Difference]: With dead ends: 256 [2022-04-06 08:39:22,005 INFO L226 Difference]: Without dead ends: 256 [2022-04-06 08:39:22,005 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 [2022-04-06 08:39:22,006 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:22,006 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:39:22,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-06 08:39:22,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239. [2022-04-06 08:39:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.4957264957264957) internal successors, (350), 234 states have internal predecessors, (350), 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) [2022-04-06 08:39:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 354 transitions. [2022-04-06 08:39:22,015 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 354 transitions. Word has length 73 [2022-04-06 08:39:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:22,016 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 354 transitions. [2022-04-06 08:39:22,016 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) [2022-04-06 08:39:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 354 transitions. [2022-04-06 08:39:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-06 08:39:22,017 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:22,017 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] [2022-04-06 08:39:22,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:39:22,018 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:22,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:22,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2069356890, now seen corresponding path program 1 times [2022-04-06 08:39:22,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:22,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260857135] [2022-04-06 08:39:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:22,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:22,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260857135] [2022-04-06 08:39:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260857135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:22,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:22,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551123925] [2022-04-06 08:39:22,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:22,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:22,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:22,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:22,192 INFO L87 Difference]: Start difference. First operand 239 states and 354 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) [2022-04-06 08:39:24,207 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 [] [2022-04-06 08:39:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:24,748 INFO L93 Difference]: Finished difference Result 421 states and 626 transitions. [2022-04-06 08:39:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:24,754 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 [2022-04-06 08:39:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:24,757 INFO L225 Difference]: With dead ends: 421 [2022-04-06 08:39:24,757 INFO L226 Difference]: Without dead ends: 421 [2022-04-06 08:39:24,757 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 [2022-04-06 08:39:24,758 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 [2022-04-06 08:39:24,758 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] [2022-04-06 08:39:24,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-06 08:39:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 263. [2022-04-06 08:39:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4922480620155039) internal successors, (385), 258 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 389 transitions. [2022-04-06 08:39:24,781 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 389 transitions. Word has length 73 [2022-04-06 08:39:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:24,781 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 389 transitions. [2022-04-06 08:39:24,781 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) [2022-04-06 08:39:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 389 transitions. [2022-04-06 08:39:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 08:39:24,782 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:24,783 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] [2022-04-06 08:39:24,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:39:24,783 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash -841732619, now seen corresponding path program 1 times [2022-04-06 08:39:24,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300438939] [2022-04-06 08:39:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:25,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:25,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300438939] [2022-04-06 08:39:25,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300438939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:25,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:25,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:25,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524003909] [2022-04-06 08:39:25,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:25,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:25,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:25,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:25,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:25,016 INFO L87 Difference]: Start difference. First operand 263 states and 389 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) [2022-04-06 08:39:27,031 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 [] [2022-04-06 08:39:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:27,469 INFO L93 Difference]: Finished difference Result 421 states and 623 transitions. [2022-04-06 08:39:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:27,470 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 [2022-04-06 08:39:27,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:27,472 INFO L225 Difference]: With dead ends: 421 [2022-04-06 08:39:27,472 INFO L226 Difference]: Without dead ends: 421 [2022-04-06 08:39:27,472 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 [2022-04-06 08:39:27,473 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 [2022-04-06 08:39:27,473 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] [2022-04-06 08:39:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-06 08:39:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2022-04-06 08:39:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.4846153846153847) internal successors, (386), 260 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) [2022-04-06 08:39:27,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 390 transitions. [2022-04-06 08:39:27,479 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 390 transitions. Word has length 74 [2022-04-06 08:39:27,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:27,480 INFO L478 AbstractCegarLoop]: Abstraction has 265 states and 390 transitions. [2022-04-06 08:39:27,480 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) [2022-04-06 08:39:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 390 transitions. [2022-04-06 08:39:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-06 08:39:27,481 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:27,481 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] [2022-04-06 08:39:27,481 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:39:27,481 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash -845929674, now seen corresponding path program 1 times [2022-04-06 08:39:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:27,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6875609] [2022-04-06 08:39:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:27,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:27,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:27,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6875609] [2022-04-06 08:39:27,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6875609] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:27,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:27,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:27,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054553424] [2022-04-06 08:39:27,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:27,660 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:27,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:27,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:27,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:27,661 INFO L87 Difference]: Start difference. First operand 265 states and 390 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) [2022-04-06 08:39:29,670 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 [] [2022-04-06 08:39:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:29,969 INFO L93 Difference]: Finished difference Result 282 states and 412 transitions. [2022-04-06 08:39:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:29,969 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 [2022-04-06 08:39:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:29,970 INFO L225 Difference]: With dead ends: 282 [2022-04-06 08:39:29,970 INFO L226 Difference]: Without dead ends: 282 [2022-04-06 08:39:29,971 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 [2022-04-06 08:39:29,971 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:29,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 478 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:39:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-04-06 08:39:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 265. [2022-04-06 08:39:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.4807692307692308) internal successors, (385), 260 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 389 transitions. [2022-04-06 08:39:29,975 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 389 transitions. Word has length 75 [2022-04-06 08:39:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:29,975 INFO L478 AbstractCegarLoop]: Abstraction has 265 states and 389 transitions. [2022-04-06 08:39:29,976 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) [2022-04-06 08:39:29,976 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 389 transitions. [2022-04-06 08:39:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-06 08:39:29,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:29,976 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] [2022-04-06 08:39:29,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:39:29,977 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:29,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash -942089998, now seen corresponding path program 1 times [2022-04-06 08:39:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:29,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553746443] [2022-04-06 08:39:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:30,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:30,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:30,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553746443] [2022-04-06 08:39:30,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553746443] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:30,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:30,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:30,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889112571] [2022-04-06 08:39:30,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:30,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:30,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:30,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:30,130 INFO L87 Difference]: Start difference. First operand 265 states and 389 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:32,137 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 [] [2022-04-06 08:39:32,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:32,502 INFO L93 Difference]: Finished difference Result 421 states and 619 transitions. [2022-04-06 08:39:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:32,502 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 [2022-04-06 08:39:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:32,504 INFO L225 Difference]: With dead ends: 421 [2022-04-06 08:39:32,504 INFO L226 Difference]: Without dead ends: 421 [2022-04-06 08:39:32,504 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 [2022-04-06 08:39:32,504 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:32,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-06 08:39:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 269. [2022-04-06 08:39:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.4772727272727273) internal successors, (390), 264 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 394 transitions. [2022-04-06 08:39:32,509 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 394 transitions. Word has length 76 [2022-04-06 08:39:32,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:32,510 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 394 transitions. [2022-04-06 08:39:32,510 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) [2022-04-06 08:39:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 394 transitions. [2022-04-06 08:39:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 08:39:32,510 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:32,511 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] [2022-04-06 08:39:32,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:39:32,511 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:32,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1179030540, now seen corresponding path program 1 times [2022-04-06 08:39:32,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:32,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675757060] [2022-04-06 08:39:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:32,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-06 08:39:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:32,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675757060] [2022-04-06 08:39:32,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675757060] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:32,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:32,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:39:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46280509] [2022-04-06 08:39:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:32,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:39:32,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:32,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:39:32,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:32,636 INFO L87 Difference]: Start difference. First operand 269 states and 394 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) [2022-04-06 08:39:34,644 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 [] [2022-04-06 08:39:35,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:35,004 INFO L93 Difference]: Finished difference Result 404 states and 591 transitions. [2022-04-06 08:39:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:39:35,004 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 [2022-04-06 08:39:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:35,006 INFO L225 Difference]: With dead ends: 404 [2022-04-06 08:39:35,006 INFO L226 Difference]: Without dead ends: 404 [2022-04-06 08:39:35,006 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 [2022-04-06 08:39:35,006 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 [2022-04-06 08:39:35,007 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] [2022-04-06 08:39:35,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-04-06 08:39:35,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-04-06 08:39:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.4711779448621554) internal successors, (587), 399 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 591 transitions. [2022-04-06 08:39:35,012 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 591 transitions. Word has length 77 [2022-04-06 08:39:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:35,013 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 591 transitions. [2022-04-06 08:39:35,013 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) [2022-04-06 08:39:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 591 transitions. [2022-04-06 08:39:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 08:39:35,013 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:35,014 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] [2022-04-06 08:39:35,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:39:35,014 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:35,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1210050347, now seen corresponding path program 1 times [2022-04-06 08:39:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:35,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343502001] [2022-04-06 08:39:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:39:35,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:35,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343502001] [2022-04-06 08:39:35,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343502001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:35,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:35,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:39:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640404467] [2022-04-06 08:39:35,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:35,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:39:35,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:35,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:39:35,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:35,172 INFO L87 Difference]: Start difference. First operand 404 states and 591 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:37,184 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 [] [2022-04-06 08:39:37,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:37,414 INFO L93 Difference]: Finished difference Result 429 states and 624 transitions. [2022-04-06 08:39:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:39:37,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-06 08:39:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:37,417 INFO L225 Difference]: With dead ends: 429 [2022-04-06 08:39:37,417 INFO L226 Difference]: Without dead ends: 429 [2022-04-06 08:39:37,417 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 [2022-04-06 08:39:37,417 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:37,418 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:39:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-04-06 08:39:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-04-06 08:39:37,422 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) [2022-04-06 08:39:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 624 transitions. [2022-04-06 08:39:37,423 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 624 transitions. Word has length 77 [2022-04-06 08:39:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:37,424 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 624 transitions. [2022-04-06 08:39:37,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:39:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 624 transitions. [2022-04-06 08:39:37,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-06 08:39:37,426 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:37,426 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] [2022-04-06 08:39:37,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:39:37,426 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:37,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 464067919, now seen corresponding path program 1 times [2022-04-06 08:39:37,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:37,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336091013] [2022-04-06 08:39:37,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:37,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 08:39:37,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:37,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336091013] [2022-04-06 08:39:37,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336091013] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:37,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:37,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:39:37,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849095750] [2022-04-06 08:39:37,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:37,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:39:37,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:39:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:37,561 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) [2022-04-06 08:39:39,572 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 [] [2022-04-06 08:39:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:39,965 INFO L93 Difference]: Finished difference Result 563 states and 820 transitions. [2022-04-06 08:39:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:39:39,966 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 [2022-04-06 08:39:39,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:39,968 INFO L225 Difference]: With dead ends: 563 [2022-04-06 08:39:39,968 INFO L226 Difference]: Without dead ends: 563 [2022-04-06 08:39:39,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:39,969 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, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:39,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-04-06 08:39:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-04-06 08:39:39,976 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) [2022-04-06 08:39:39,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 820 transitions. [2022-04-06 08:39:39,977 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 820 transitions. Word has length 97 [2022-04-06 08:39:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:39,977 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 820 transitions. [2022-04-06 08:39:39,978 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) [2022-04-06 08:39:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 820 transitions. [2022-04-06 08:39:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 08:39:39,980 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:39,980 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] [2022-04-06 08:39:39,981 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:39:39,981 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1668406687, now seen corresponding path program 1 times [2022-04-06 08:39:39,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:39,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474285720] [2022-04-06 08:39:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 08:39:40,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:40,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474285720] [2022-04-06 08:39:40,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474285720] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:40,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:40,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:39:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156179413] [2022-04-06 08:39:40,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:40,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:39:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:39:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:39:40,144 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) [2022-04-06 08:39:42,156 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 [] [2022-04-06 08:39:42,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:42,524 INFO L93 Difference]: Finished difference Result 679 states and 990 transitions. [2022-04-06 08:39:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:39:42,525 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 [2022-04-06 08:39:42,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:42,527 INFO L225 Difference]: With dead ends: 679 [2022-04-06 08:39:42,527 INFO L226 Difference]: Without dead ends: 679 [2022-04-06 08:39:42,527 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 [2022-04-06 08:39:42,527 INFO L913 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:42,528 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:42,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-04-06 08:39:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-04-06 08:39:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.4629080118694362) internal successors, (986), 674 states have internal predecessors, (986), 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) [2022-04-06 08:39:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 990 transitions. [2022-04-06 08:39:42,536 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 990 transitions. Word has length 118 [2022-04-06 08:39:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:42,536 INFO L478 AbstractCegarLoop]: Abstraction has 679 states and 990 transitions. [2022-04-06 08:39:42,536 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) [2022-04-06 08:39:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 990 transitions. [2022-04-06 08:39:42,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-06 08:39:42,538 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:42,538 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] [2022-04-06 08:39:42,538 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:39:42,538 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash -65774092, now seen corresponding path program 1 times [2022-04-06 08:39:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:42,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958752126] [2022-04-06 08:39:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-06 08:39:42,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:42,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958752126] [2022-04-06 08:39:42,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958752126] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:42,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:42,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:42,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288710598] [2022-04-06 08:39:42,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:42,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:42,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:42,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:42,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:42,716 INFO L87 Difference]: Start difference. First operand 679 states and 990 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) [2022-04-06 08:39:44,725 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 [] [2022-04-06 08:39:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:45,073 INFO L93 Difference]: Finished difference Result 1137 states and 1653 transitions. [2022-04-06 08:39:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:45,073 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 [2022-04-06 08:39:45,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:45,076 INFO L225 Difference]: With dead ends: 1137 [2022-04-06 08:39:45,076 INFO L226 Difference]: Without dead ends: 1137 [2022-04-06 08:39:45,077 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 [2022-04-06 08:39:45,077 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, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:45,077 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:39:45,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-04-06 08:39:45,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 784. [2022-04-06 08:39:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.4711168164313222) internal successors, (1146), 779 states have internal predecessors, (1146), 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) [2022-04-06 08:39:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1150 transitions. [2022-04-06 08:39:45,088 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1150 transitions. Word has length 152 [2022-04-06 08:39:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:45,088 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1150 transitions. [2022-04-06 08:39:45,088 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) [2022-04-06 08:39:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1150 transitions. [2022-04-06 08:39:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-06 08:39:45,090 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:45,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:39:45,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:39:45,090 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 449746357, now seen corresponding path program 1 times [2022-04-06 08:39:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:45,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535345588] [2022-04-06 08:39:45,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:45,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-06 08:39:45,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535345588] [2022-04-06 08:39:45,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535345588] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:45,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:45,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:45,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99118947] [2022-04-06 08:39:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:45,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:45,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:45,262 INFO L87 Difference]: Start difference. First operand 784 states and 1150 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) [2022-04-06 08:39:47,269 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 [] [2022-04-06 08:39:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:47,723 INFO L93 Difference]: Finished difference Result 1149 states and 1676 transitions. [2022-04-06 08:39:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:47,724 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 [2022-04-06 08:39:47,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:47,727 INFO L225 Difference]: With dead ends: 1149 [2022-04-06 08:39:47,727 INFO L226 Difference]: Without dead ends: 1149 [2022-04-06 08:39:47,727 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 [2022-04-06 08:39:47,727 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 101 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:47,727 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 571 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2022-04-06 08:39:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 848. [2022-04-06 08:39:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 843 states have (on average 1.468564650059312) internal successors, (1238), 843 states have internal predecessors, (1238), 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) [2022-04-06 08:39:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1242 transitions. [2022-04-06 08:39:47,739 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1242 transitions. Word has length 152 [2022-04-06 08:39:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:47,739 INFO L478 AbstractCegarLoop]: Abstraction has 848 states and 1242 transitions. [2022-04-06 08:39:47,739 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) [2022-04-06 08:39:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1242 transitions. [2022-04-06 08:39:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 08:39:47,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:47,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:39:47,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:39:47,741 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:47,741 INFO L85 PathProgramCache]: Analyzing trace with hash 52767334, now seen corresponding path program 1 times [2022-04-06 08:39:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428748107] [2022-04-06 08:39:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:47,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-04-06 08:39:47,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:47,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428748107] [2022-04-06 08:39:47,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428748107] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:47,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:47,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:47,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237370807] [2022-04-06 08:39:47,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:47,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:47,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:47,879 INFO L87 Difference]: Start difference. First operand 848 states and 1242 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) [2022-04-06 08:39:49,899 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 [] [2022-04-06 08:39:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:50,375 INFO L93 Difference]: Finished difference Result 1326 states and 1936 transitions. [2022-04-06 08:39:50,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:50,375 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 [2022-04-06 08:39:50,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:50,379 INFO L225 Difference]: With dead ends: 1326 [2022-04-06 08:39:50,379 INFO L226 Difference]: Without dead ends: 1326 [2022-04-06 08:39:50,379 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 [2022-04-06 08:39:50,379 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 111 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:50,379 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 506 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 08:39:50,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-04-06 08:39:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 943. [2022-04-06 08:39:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.464818763326226) internal successors, (1374), 938 states have internal predecessors, (1374), 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) [2022-04-06 08:39:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1378 transitions. [2022-04-06 08:39:50,392 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1378 transitions. Word has length 153 [2022-04-06 08:39:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:50,392 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1378 transitions. [2022-04-06 08:39:50,392 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) [2022-04-06 08:39:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1378 transitions. [2022-04-06 08:39:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-06 08:39:50,394 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:50,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:39:50,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:39:50,395 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash -413691918, now seen corresponding path program 2 times [2022-04-06 08:39:50,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:50,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595226551] [2022-04-06 08:39:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:39:50,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:50,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595226551] [2022-04-06 08:39:50,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595226551] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:50,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:50,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137049182] [2022-04-06 08:39:50,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:50,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:50,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:50,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:50,529 INFO L87 Difference]: Start difference. First operand 943 states and 1378 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) [2022-04-06 08:39:52,537 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 [] [2022-04-06 08:39:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:52,952 INFO L93 Difference]: Finished difference Result 1226 states and 1784 transitions. [2022-04-06 08:39:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:52,953 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 [2022-04-06 08:39:52,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:52,956 INFO L225 Difference]: With dead ends: 1226 [2022-04-06 08:39:52,956 INFO L226 Difference]: Without dead ends: 1226 [2022-04-06 08:39:52,956 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 [2022-04-06 08:39:52,956 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 100 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:52,957 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 561 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:52,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-04-06 08:39:52,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 943. [2022-04-06 08:39:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.4605543710021323) internal successors, (1370), 938 states have internal predecessors, (1370), 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) [2022-04-06 08:39:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1374 transitions. [2022-04-06 08:39:52,968 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1374 transitions. Word has length 166 [2022-04-06 08:39:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:52,968 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1374 transitions. [2022-04-06 08:39:52,968 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) [2022-04-06 08:39:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1374 transitions. [2022-04-06 08:39:52,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-04-06 08:39:52,970 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:52,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:39:52,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:39:52,970 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:52,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:52,971 INFO L85 PathProgramCache]: Analyzing trace with hash -811458194, now seen corresponding path program 1 times [2022-04-06 08:39:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:52,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508930930] [2022-04-06 08:39:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:52,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:39:53,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:53,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508930930] [2022-04-06 08:39:53,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508930930] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:39:53,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:39:53,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:39:53,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065795369] [2022-04-06 08:39:53,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:39:53,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:39:53,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:39:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:39:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:39:53,126 INFO L87 Difference]: Start difference. First operand 943 states and 1374 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) [2022-04-06 08:39:55,134 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 [] [2022-04-06 08:39:55,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:39:55,504 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2022-04-06 08:39:55,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:39:55,505 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 [2022-04-06 08:39:55,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:39:55,508 INFO L225 Difference]: With dead ends: 1190 [2022-04-06 08:39:55,508 INFO L226 Difference]: Without dead ends: 1190 [2022-04-06 08:39:55,508 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 [2022-04-06 08:39:55,508 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 89 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:39:55,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 547 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:39:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2022-04-06 08:39:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 943. [2022-04-06 08:39:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.4562899786780383) internal successors, (1366), 938 states have internal predecessors, (1366), 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) [2022-04-06 08:39:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1370 transitions. [2022-04-06 08:39:55,527 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1370 transitions. Word has length 168 [2022-04-06 08:39:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:39:55,527 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1370 transitions. [2022-04-06 08:39:55,527 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) [2022-04-06 08:39:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1370 transitions. [2022-04-06 08:39:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-06 08:39:55,529 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:39:55,529 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:39:55,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:39:55,529 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:39:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:39:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1010941213, now seen corresponding path program 3 times [2022-04-06 08:39:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:39:55,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458018760] [2022-04-06 08:39:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:39:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:39:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:55,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:39:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:39:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-06 08:39:55,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:39:55,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458018760] [2022-04-06 08:39:55,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458018760] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:39:55,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567723715] [2022-04-06 08:39:55,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-06 08:39:55,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:39:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:39:55,699 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) [2022-04-06 08:39:55,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:40:25,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-04-06 08:40:25,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 08:40:25,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-06 08:40:25,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:40:25,905 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 [2022-04-06 08:40:25,930 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:40:25,930 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 [2022-04-06 08:40:25,967 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 [2022-04-06 08:40:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-06 08:40:25,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:40:25,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567723715] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:40:25,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:40:25,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-04-06 08:40:25,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487017051] [2022-04-06 08:40:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:25,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:40:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:40:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:40:25,979 INFO L87 Difference]: Start difference. First operand 943 states and 1370 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-04-06 08:40:27,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:40:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:27,495 INFO L93 Difference]: Finished difference Result 1396 states and 2018 transitions. [2022-04-06 08:40:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:40:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 170 [2022-04-06 08:40:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:27,498 INFO L225 Difference]: With dead ends: 1396 [2022-04-06 08:40:27,499 INFO L226 Difference]: Without dead ends: 1396 [2022-04-06 08:40:27,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-06 08:40:27,499 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 100 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:27,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 551 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-06 08:40:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2022-04-06 08:40:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1063. [2022-04-06 08:40:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1058 states have (on average 1.4659735349716445) internal successors, (1551), 1058 states have internal predecessors, (1551), 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) [2022-04-06 08:40:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1555 transitions. [2022-04-06 08:40:27,518 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1555 transitions. Word has length 170 [2022-04-06 08:40:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:27,518 INFO L478 AbstractCegarLoop]: Abstraction has 1063 states and 1555 transitions. [2022-04-06 08:40:27,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-04-06 08:40:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1555 transitions. [2022-04-06 08:40:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-06 08:40:27,520 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:27,520 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:40:27,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 08:40:27,721 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,SelfDestructingSolverStorable17 [2022-04-06 08:40:27,721 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1077947966, now seen corresponding path program 4 times [2022-04-06 08:40:27,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:27,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447599201] [2022-04-06 08:40:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:27,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-06 08:40:27,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:27,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447599201] [2022-04-06 08:40:27,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447599201] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:27,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422072134] [2022-04-06 08:40:27,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 08:40:27,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:27,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:40:27,893 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) [2022-04-06 08:40:27,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 08:40:28,626 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 08:40:28,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 08:40:28,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:40:28,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:40:28,704 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:40:28,705 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 [2022-04-06 08:40:28,710 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 [2022-04-06 08:40:28,716 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 [2022-04-06 08:40:28,721 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 [2022-04-06 08:40:28,910 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-06 08:40:28,910 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 [2022-04-06 08:40:28,919 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 [2022-04-06 08:40:28,945 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 [2022-04-06 08:40:28,980 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:40:28,980 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 [2022-04-06 08:40:29,143 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 [2022-04-06 08:40:29,169 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:40:29,169 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 [2022-04-06 08:40:29,201 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 [2022-04-06 08:40:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 91 proven. 70 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-04-06 08:40:29,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:40:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-06 08:40:29,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422072134] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:29,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:40:29,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:40:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681713177] [2022-04-06 08:40:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:29,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:40:29,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:29,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:40:29,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:40:29,387 INFO L87 Difference]: Start difference. First operand 1063 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-04-06 08:40:31,397 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 [] [2022-04-06 08:40:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:31,651 INFO L93 Difference]: Finished difference Result 1536 states and 2238 transitions. [2022-04-06 08:40:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:40:31,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 170 [2022-04-06 08:40:31,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:31,656 INFO L225 Difference]: With dead ends: 1536 [2022-04-06 08:40:31,656 INFO L226 Difference]: Without dead ends: 1536 [2022-04-06 08:40:31,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:40:31,657 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 96 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 318 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 [2022-04-06 08:40:31,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 318 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:40:31,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-04-06 08:40:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1083. [2022-04-06 08:40:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.471243042671614) internal successors, (1586), 1078 states have internal predecessors, (1586), 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) [2022-04-06 08:40:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1590 transitions. [2022-04-06 08:40:31,674 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1590 transitions. Word has length 170 [2022-04-06 08:40:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:31,674 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1590 transitions. [2022-04-06 08:40:31,674 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2022-04-06 08:40:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1590 transitions. [2022-04-06 08:40:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-06 08:40:31,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:31,676 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:40:31,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 08:40:31,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:31,891 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:31,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1273457422, now seen corresponding path program 1 times [2022-04-06 08:40:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:31,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577872327] [2022-04-06 08:40:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 294 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-04-06 08:40:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:32,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577872327] [2022-04-06 08:40:32,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577872327] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:32,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936361216] [2022-04-06 08:40:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:32,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:40:32,061 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) [2022-04-06 08:40:32,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 08:40:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:32,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-06 08:40:32,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:40:32,863 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:40:32,864 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 [2022-04-06 08:40:32,868 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 [2022-04-06 08:40:32,872 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 [2022-04-06 08:40:32,880 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 [2022-04-06 08:40:32,959 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 [2022-04-06 08:40:33,003 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:40:33,003 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 [2022-04-06 08:40:33,094 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:40:33,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:40:33,138 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 [2022-04-06 08:40:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 256 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-06 08:40:33,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:40:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-04-06 08:40:33,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936361216] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:33,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:40:33,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:40:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094964410] [2022-04-06 08:40:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:33,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:40:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:40:33,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:40:33,434 INFO L87 Difference]: Start difference. First operand 1083 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-04-06 08:40:35,442 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 [] [2022-04-06 08:40:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:35,647 INFO L93 Difference]: Finished difference Result 1436 states and 2078 transitions. [2022-04-06 08:40:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:40:35,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 171 [2022-04-06 08:40:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:35,672 INFO L225 Difference]: With dead ends: 1436 [2022-04-06 08:40:35,672 INFO L226 Difference]: Without dead ends: 1436 [2022-04-06 08:40:35,673 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:40:35,674 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:35,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 290 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:40:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-04-06 08:40:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1083. [2022-04-06 08:40:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4573283858998145) internal successors, (1571), 1078 states have internal predecessors, (1571), 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) [2022-04-06 08:40:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-04-06 08:40:35,689 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 171 [2022-04-06 08:40:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:35,689 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-04-06 08:40:35,689 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-04-06 08:40:35,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-04-06 08:40:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 08:40:35,691 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:35,691 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:40:35,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 08:40:35,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:35,912 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:35,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash -251034012, now seen corresponding path program 1 times [2022-04-06 08:40:35,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:35,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361722786] [2022-04-06 08:40:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:35,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 295 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-04-06 08:40:36,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:36,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361722786] [2022-04-06 08:40:36,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361722786] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:36,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151851237] [2022-04-06 08:40:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:36,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:36,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:40:36,071 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) [2022-04-06 08:40:36,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 08:40:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:36,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-06 08:40:36,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:40:36,878 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:40:36,878 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 [2022-04-06 08:40:36,882 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 [2022-04-06 08:40:36,887 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 [2022-04-06 08:40:36,892 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 [2022-04-06 08:40:36,993 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 [2022-04-06 08:40:37,020 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:40:37,020 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 [2022-04-06 08:40:37,120 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:40:37,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:40:37,157 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 [2022-04-06 08:40:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 259 proven. 40 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-06 08:40:37,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:40:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-04-06 08:40:37,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151851237] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:37,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:40:37,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:40:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713344769] [2022-04-06 08:40:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:37,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:40:37,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:40:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:40:37,492 INFO L87 Difference]: Start difference. First operand 1083 states and 1575 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) [2022-04-06 08:40:39,502 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 [] [2022-04-06 08:40:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:39,722 INFO L93 Difference]: Finished difference Result 1428 states and 2053 transitions. [2022-04-06 08:40:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:40:39,723 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 172 [2022-04-06 08:40:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:39,727 INFO L225 Difference]: With dead ends: 1428 [2022-04-06 08:40:39,727 INFO L226 Difference]: Without dead ends: 1428 [2022-04-06 08:40:39,727 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:40:39,728 INFO L913 BasicCegarLoop]: 101 mSDtfsCounter, 109 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:39,728 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:40:39,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-04-06 08:40:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1083. [2022-04-06 08:40:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.443413729128015) internal successors, (1556), 1078 states have internal predecessors, (1556), 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) [2022-04-06 08:40:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-04-06 08:40:39,746 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 172 [2022-04-06 08:40:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:39,746 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-04-06 08:40:39,747 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) [2022-04-06 08:40:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-04-06 08:40:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 08:40:39,749 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:39,749 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 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, 1] [2022-04-06 08:40:39,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-06 08:40:39,967 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:39,967 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1563134140, now seen corresponding path program 1 times [2022-04-06 08:40:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:39,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588893725] [2022-04-06 08:40:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:40:40,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:40,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588893725] [2022-04-06 08:40:40,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588893725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:40:40,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:40:40,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:40:40,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206810086] [2022-04-06 08:40:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:40,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:40:40,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:40:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:40:40,129 INFO L87 Difference]: Start difference. First operand 1083 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:40:42,143 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 [] [2022-04-06 08:40:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:42,572 INFO L93 Difference]: Finished difference Result 1428 states and 2043 transitions. [2022-04-06 08:40:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:40:42,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 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 [2022-04-06 08:40:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:42,577 INFO L225 Difference]: With dead ends: 1428 [2022-04-06 08:40:42,577 INFO L226 Difference]: Without dead ends: 1428 [2022-04-06 08:40:42,578 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 [2022-04-06 08:40:42,578 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:42,578 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:40:42,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-04-06 08:40:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1088. [2022-04-06 08:40:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1083 states have (on average 1.4367497691597415) internal successors, (1556), 1083 states have internal predecessors, (1556), 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) [2022-04-06 08:40:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1560 transitions. [2022-04-06 08:40:42,612 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1560 transitions. Word has length 172 [2022-04-06 08:40:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:42,612 INFO L478 AbstractCegarLoop]: Abstraction has 1088 states and 1560 transitions. [2022-04-06 08:40:42,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:40:42,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1560 transitions. [2022-04-06 08:40:42,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-06 08:40:42,615 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:42,615 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:40:42,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:40:42,615 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:42,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash -179683901, now seen corresponding path program 1 times [2022-04-06 08:40:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:42,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7059711] [2022-04-06 08:40:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:42,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 245 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-04-06 08:40:42,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7059711] [2022-04-06 08:40:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7059711] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60934001] [2022-04-06 08:40:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:42,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:42,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:40:42,792 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) [2022-04-06 08:40:42,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 08:40:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:43,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:40:43,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:40:43,689 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:40:43,690 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 [2022-04-06 08:40:43,693 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 [2022-04-06 08:40:43,698 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 [2022-04-06 08:40:43,705 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 [2022-04-06 08:40:43,866 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-06 08:40:43,875 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 [2022-04-06 08:40:43,904 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:40:43,905 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 [2022-04-06 08:40:44,030 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 [2022-04-06 08:40:44,046 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:40:44,046 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 [2022-04-06 08:40:44,084 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 [2022-04-06 08:40:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 98 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-06 08:40:44,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:40:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:40:44,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60934001] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:44,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:40:44,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:40:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872620839] [2022-04-06 08:40:44,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:44,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:40:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:44,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:40:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:40:44,275 INFO L87 Difference]: Start difference. First operand 1088 states and 1560 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) [2022-04-06 08:40:46,281 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 [] [2022-04-06 08:40:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:46,524 INFO L93 Difference]: Finished difference Result 1622 states and 2312 transitions. [2022-04-06 08:40:46,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:40:46,525 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 [2022-04-06 08:40:46,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:46,528 INFO L225 Difference]: With dead ends: 1622 [2022-04-06 08:40:46,528 INFO L226 Difference]: Without dead ends: 1622 [2022-04-06 08:40:46,529 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:40:46,529 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 86 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:46,529 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 523 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:40:46,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-04-06 08:40:46,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1338. [2022-04-06 08:40:46,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.433608402100525) internal successors, (1911), 1333 states have internal predecessors, (1911), 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) [2022-04-06 08:40:46,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1915 transitions. [2022-04-06 08:40:46,542 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1915 transitions. Word has length 175 [2022-04-06 08:40:46,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:46,543 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1915 transitions. [2022-04-06 08:40:46,543 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) [2022-04-06 08:40:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1915 transitions. [2022-04-06 08:40:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-06 08:40:46,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:46,545 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:40:46,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-06 08:40:46,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-04-06 08:40:46,772 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2038074052, now seen corresponding path program 1 times [2022-04-06 08:40:46,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588056715] [2022-04-06 08:40:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:46,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:40:46,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:46,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588056715] [2022-04-06 08:40:46,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588056715] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:40:46,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:40:46,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:40:46,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035843987] [2022-04-06 08:40:46,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:40:46,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:40:46,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:40:46,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:40:46,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:40:46,936 INFO L87 Difference]: Start difference. First operand 1338 states and 1915 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:40:48,944 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 [] [2022-04-06 08:40:49,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:40:49,266 INFO L93 Difference]: Finished difference Result 1430 states and 2020 transitions. [2022-04-06 08:40:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:40:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-04-06 08:40:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:40:49,270 INFO L225 Difference]: With dead ends: 1430 [2022-04-06 08:40:49,270 INFO L226 Difference]: Without dead ends: 1430 [2022-04-06 08:40:49,270 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 [2022-04-06 08:40:49,270 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:40:49,270 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 477 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:40:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2022-04-06 08:40:49,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1338. [2022-04-06 08:40:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.4298574643660915) internal successors, (1906), 1333 states have internal predecessors, (1906), 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) [2022-04-06 08:40:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1910 transitions. [2022-04-06 08:40:49,283 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1910 transitions. Word has length 175 [2022-04-06 08:40:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:40:49,283 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1910 transitions. [2022-04-06 08:40:49,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:40:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1910 transitions. [2022-04-06 08:40:49,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-04-06 08:40:49,285 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:40:49,285 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:40:49,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:40:49,285 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:40:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:40:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1203351578, now seen corresponding path program 2 times [2022-04-06 08:40:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:40:49,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023150505] [2022-04-06 08:40:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:40:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:40:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:40:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:40:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 298 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-04-06 08:40:49,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:40:49,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023150505] [2022-04-06 08:40:49,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023150505] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:40:49,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327487459] [2022-04-06 08:40:49,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 08:40:49,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:40:49,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:40:49,490 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:40:49,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 08:41:06,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 08:41:06,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 08:41:06,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:41:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:06,120 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:06,121 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 [2022-04-06 08:41:06,124 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 [2022-04-06 08:41:06,129 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 [2022-04-06 08:41:06,133 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 [2022-04-06 08:41:06,270 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 25 treesize of output 13 [2022-04-06 08:41:06,344 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:06,344 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 [2022-04-06 08:41:06,492 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 [2022-04-06 08:41:06,511 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:06,511 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 [2022-04-06 08:41:06,523 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 [2022-04-06 08:41:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 161 proven. 66 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-06 08:41:06,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:41:06,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327487459] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:06,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:06,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413876845] [2022-04-06 08:41:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:06,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:06,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:06,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:06,787 INFO L87 Difference]: Start difference. First operand 1338 states and 1910 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-04-06 08:41:08,796 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 [] [2022-04-06 08:41:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:09,088 INFO L93 Difference]: Finished difference Result 1673 states and 2358 transitions. [2022-04-06 08:41:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:09,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 189 [2022-04-06 08:41:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:09,093 INFO L225 Difference]: With dead ends: 1673 [2022-04-06 08:41:09,093 INFO L226 Difference]: Without dead ends: 1673 [2022-04-06 08:41:09,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:09,094 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:09,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 304 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 204 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-04-06 08:41:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1338. [2022-04-06 08:41:09,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.4073518379594898) internal successors, (1876), 1333 states have internal predecessors, (1876), 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) [2022-04-06 08:41:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1880 transitions. [2022-04-06 08:41:09,116 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1880 transitions. Word has length 189 [2022-04-06 08:41:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:09,117 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1880 transitions. [2022-04-06 08:41:09,117 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-04-06 08:41:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1880 transitions. [2022-04-06 08:41:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-04-06 08:41:09,120 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:09,120 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1] [2022-04-06 08:41:09,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 08:41:09,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:09,345 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:09,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1848552726, now seen corresponding path program 1 times [2022-04-06 08:41:09,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:09,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147698492] [2022-04-06 08:41:09,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:09,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 318 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-04-06 08:41:09,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:09,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147698492] [2022-04-06 08:41:09,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147698492] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:09,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767494235] [2022-04-06 08:41:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:09,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:09,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:41:09,562 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:41:09,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-06 08:41:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:10,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:41:10,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:10,594 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:10,595 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 [2022-04-06 08:41:10,598 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 [2022-04-06 08:41:10,604 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 [2022-04-06 08:41:10,610 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 [2022-04-06 08:41:10,689 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 [2022-04-06 08:41:10,691 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 [2022-04-06 08:41:10,718 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:10,718 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 [2022-04-06 08:41:10,841 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 [2022-04-06 08:41:10,870 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:10,870 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 [2022-04-06 08:41:10,887 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 [2022-04-06 08:41:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 181 proven. 69 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-06 08:41:10,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:41:11,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767494235] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:11,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:11,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71631479] [2022-04-06 08:41:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:11,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:11,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:11,140 INFO L87 Difference]: Start difference. First operand 1338 states and 1880 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-04-06 08:41:13,158 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 [] [2022-04-06 08:41:13,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:13,396 INFO L93 Difference]: Finished difference Result 1674 states and 2329 transitions. [2022-04-06 08:41:13,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:13,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 191 [2022-04-06 08:41:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:13,411 INFO L225 Difference]: With dead ends: 1674 [2022-04-06 08:41:13,411 INFO L226 Difference]: Without dead ends: 1674 [2022-04-06 08:41:13,411 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:13,415 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 113 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:13,417 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 286 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:41:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-04-06 08:41:13,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1338. [2022-04-06 08:41:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 1.3848462115528881) internal successors, (1846), 1333 states have internal predecessors, (1846), 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) [2022-04-06 08:41:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1850 transitions. [2022-04-06 08:41:13,432 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1850 transitions. Word has length 191 [2022-04-06 08:41:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:13,432 INFO L478 AbstractCegarLoop]: Abstraction has 1338 states and 1850 transitions. [2022-04-06 08:41:13,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-04-06 08:41:13,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1850 transitions. [2022-04-06 08:41:13,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-04-06 08:41:13,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:13,434 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:13,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-06 08:41:13,643 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:13,643 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:13,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:13,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1373065834, now seen corresponding path program 1 times [2022-04-06 08:41:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:13,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668712274] [2022-04-06 08:41:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-04-06 08:41:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:13,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668712274] [2022-04-06 08:41:13,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668712274] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:13,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:13,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:13,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017769612] [2022-04-06 08:41:13,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:13,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:13,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:13,818 INFO L87 Difference]: Start difference. First operand 1338 states and 1850 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:15,825 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 [] [2022-04-06 08:41:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:16,092 INFO L93 Difference]: Finished difference Result 1480 states and 2025 transitions. [2022-04-06 08:41:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:16,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-04-06 08:41:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:16,097 INFO L225 Difference]: With dead ends: 1480 [2022-04-06 08:41:16,097 INFO L226 Difference]: Without dead ends: 1480 [2022-04-06 08:41:16,098 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 [2022-04-06 08:41:16,101 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 18 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:16,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 468 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-04-06 08:41:16,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1448. [2022-04-06 08:41:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1443 states have (on average 1.3762993762993763) internal successors, (1986), 1443 states have internal predecessors, (1986), 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) [2022-04-06 08:41:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1990 transitions. [2022-04-06 08:41:16,149 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1990 transitions. Word has length 193 [2022-04-06 08:41:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:16,149 INFO L478 AbstractCegarLoop]: Abstraction has 1448 states and 1990 transitions. [2022-04-06 08:41:16,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1990 transitions. [2022-04-06 08:41:16,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-06 08:41:16,151 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:16,151 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:16,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:41:16,152 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:16,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1237345439, now seen corresponding path program 1 times [2022-04-06 08:41:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:16,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344866840] [2022-04-06 08:41:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:16,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 349 proven. 1 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:16,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:16,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344866840] [2022-04-06 08:41:16,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344866840] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:16,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946867140] [2022-04-06 08:41:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:16,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:16,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:41:16,324 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:41:16,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-06 08:41:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:17,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1619 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:41:17,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:17,382 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:17,383 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 [2022-04-06 08:41:17,385 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 [2022-04-06 08:41:17,390 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 [2022-04-06 08:41:17,394 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 [2022-04-06 08:41:17,448 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-06 08:41:17,457 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 [2022-04-06 08:41:17,481 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:17,482 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 [2022-04-06 08:41:17,594 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 [2022-04-06 08:41:17,611 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:17,611 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 [2022-04-06 08:41:17,643 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 [2022-04-06 08:41:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 219 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-06 08:41:17,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:41:17,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946867140] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:17,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:17,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:17,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253834281] [2022-04-06 08:41:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:17,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:17,867 INFO L87 Difference]: Start difference. First operand 1448 states and 1990 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2022-04-06 08:41:19,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:41:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:20,108 INFO L93 Difference]: Finished difference Result 1719 states and 2366 transitions. [2022-04-06 08:41:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 195 [2022-04-06 08:41:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:20,112 INFO L225 Difference]: With dead ends: 1719 [2022-04-06 08:41:20,112 INFO L226 Difference]: Without dead ends: 1719 [2022-04-06 08:41:20,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:20,112 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 82 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:20,112 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 502 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:41:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2022-04-06 08:41:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1472. [2022-04-06 08:41:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1467 states have (on average 1.3633265167007498) internal successors, (2000), 1467 states have internal predecessors, (2000), 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) [2022-04-06 08:41:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2004 transitions. [2022-04-06 08:41:20,128 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2004 transitions. Word has length 195 [2022-04-06 08:41:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:20,128 INFO L478 AbstractCegarLoop]: Abstraction has 1472 states and 2004 transitions. [2022-04-06 08:41:20,128 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2022-04-06 08:41:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2004 transitions. [2022-04-06 08:41:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-06 08:41:20,130 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:20,130 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 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] [2022-04-06 08:41:20,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-06 08:41:20,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-04-06 08:41:20,351 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1104839985, now seen corresponding path program 1 times [2022-04-06 08:41:20,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:20,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077723751] [2022-04-06 08:41:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:20,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 350 proven. 1 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-04-06 08:41:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:20,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077723751] [2022-04-06 08:41:20,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077723751] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:20,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954627220] [2022-04-06 08:41:20,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:20,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:20,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:41:20,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:41:20,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-06 08:41:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:21,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:41:21,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:21,636 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:21,636 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 [2022-04-06 08:41:21,639 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 [2022-04-06 08:41:21,643 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 [2022-04-06 08:41:21,646 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 [2022-04-06 08:41:21,714 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 [2022-04-06 08:41:21,716 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 [2022-04-06 08:41:21,752 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:21,752 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 [2022-04-06 08:41:21,870 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 [2022-04-06 08:41:21,886 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:21,887 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 [2022-04-06 08:41:21,924 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 [2022-04-06 08:41:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 221 proven. 70 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-04-06 08:41:21,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-04-06 08:41:22,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954627220] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:22,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:22,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:22,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034149513] [2022-04-06 08:41:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:22,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:22,171 INFO L87 Difference]: Start difference. First operand 1472 states and 2004 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:24,190 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 [] [2022-04-06 08:41:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:24,439 INFO L93 Difference]: Finished difference Result 1705 states and 2337 transitions. [2022-04-06 08:41:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:24,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-04-06 08:41:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:24,450 INFO L225 Difference]: With dead ends: 1705 [2022-04-06 08:41:24,450 INFO L226 Difference]: Without dead ends: 1705 [2022-04-06 08:41:24,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:24,453 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 77 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:24,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 494 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2022-04-06 08:41:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1476. [2022-04-06 08:41:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1471 states have (on average 1.3555404486743712) internal successors, (1994), 1471 states have internal predecessors, (1994), 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) [2022-04-06 08:41:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1998 transitions. [2022-04-06 08:41:24,472 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1998 transitions. Word has length 196 [2022-04-06 08:41:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:24,472 INFO L478 AbstractCegarLoop]: Abstraction has 1476 states and 1998 transitions. [2022-04-06 08:41:24,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1998 transitions. [2022-04-06 08:41:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-04-06 08:41:24,476 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:24,476 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:24,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-04-06 08:41:24,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-04-06 08:41:24,679 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:24,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1358486231, now seen corresponding path program 1 times [2022-04-06 08:41:24,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:24,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411468286] [2022-04-06 08:41:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:24,886 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 347 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-04-06 08:41:24,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:24,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411468286] [2022-04-06 08:41:24,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411468286] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:24,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258476673] [2022-04-06 08:41:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:24,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:41:24,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:41:24,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-06 08:41:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:25,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-06 08:41:26,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:26,048 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:26,048 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 [2022-04-06 08:41:26,051 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 [2022-04-06 08:41:26,056 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 [2022-04-06 08:41:26,060 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 [2022-04-06 08:41:26,129 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-06 08:41:26,143 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 [2022-04-06 08:41:26,145 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 [2022-04-06 08:41:26,174 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:26,175 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 [2022-04-06 08:41:26,340 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 [2022-04-06 08:41:26,355 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:26,356 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 [2022-04-06 08:41:26,389 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 [2022-04-06 08:41:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 116 proven. 80 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-04-06 08:41:26,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-04-06 08:41:26,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258476673] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:26,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:26,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371988564] [2022-04-06 08:41:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:26,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:26,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:26,610 INFO L87 Difference]: Start difference. First operand 1476 states and 1998 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-04-06 08:41:28,616 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 [] [2022-04-06 08:41:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:28,845 INFO L93 Difference]: Finished difference Result 1680 states and 2299 transitions. [2022-04-06 08:41:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:28,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2022-04-06 08:41:28,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:28,848 INFO L225 Difference]: With dead ends: 1680 [2022-04-06 08:41:28,848 INFO L226 Difference]: Without dead ends: 1680 [2022-04-06 08:41:28,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:28,849 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:28,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 489 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 205 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:41:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-04-06 08:41:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1356. [2022-04-06 08:41:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1351 states have (on average 1.3612139156180607) internal successors, (1839), 1351 states have internal predecessors, (1839), 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) [2022-04-06 08:41:28,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1843 transitions. [2022-04-06 08:41:28,864 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1843 transitions. Word has length 199 [2022-04-06 08:41:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:28,864 INFO L478 AbstractCegarLoop]: Abstraction has 1356 states and 1843 transitions. [2022-04-06 08:41:28,865 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2022-04-06 08:41:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1843 transitions. [2022-04-06 08:41:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-04-06 08:41:28,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:28,867 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:28,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-04-06 08:41:29,075 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:29,076 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash 246135667, now seen corresponding path program 1 times [2022-04-06 08:41:29,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:29,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493677016] [2022-04-06 08:41:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:29,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:29,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 347 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-04-06 08:41:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:29,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493677016] [2022-04-06 08:41:29,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493677016] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:29,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924773511] [2022-04-06 08:41:29,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:29,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:41:29,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:41:29,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:41:29,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-06 08:41:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:30,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 16 conjunts are in the unsatisfiable core [2022-04-06 08:41:30,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:41:30,482 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 08:41:30,483 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 [2022-04-06 08:41:30,485 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 [2022-04-06 08:41:30,490 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 [2022-04-06 08:41:30,495 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 [2022-04-06 08:41:30,566 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 [2022-04-06 08:41:30,595 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-06 08:41:30,596 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 [2022-04-06 08:41:30,606 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 [2022-04-06 08:41:30,634 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:41:30,634 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 [2022-04-06 08:41:30,731 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:41:30,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:41:30,759 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 [2022-04-06 08:41:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 317 proven. 50 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-04-06 08:41:30,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:41:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-04-06 08:41:31,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924773511] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:41:31,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:41:31,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 11 [2022-04-06 08:41:31,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76738828] [2022-04-06 08:41:31,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:31,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:41:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:31,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:41:31,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:41:31,087 INFO L87 Difference]: Start difference. First operand 1356 states and 1843 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-04-06 08:41:33,104 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 [] [2022-04-06 08:41:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:33,359 INFO L93 Difference]: Finished difference Result 1412 states and 1909 transitions. [2022-04-06 08:41:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:41:33,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 205 [2022-04-06 08:41:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:33,362 INFO L225 Difference]: With dead ends: 1412 [2022-04-06 08:41:33,362 INFO L226 Difference]: Without dead ends: 1412 [2022-04-06 08:41:33,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:41:33,362 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 105 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:33,363 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 476 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-04-06 08:41:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1128. [2022-04-06 08:41:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1123 states have (on average 1.335707925200356) internal successors, (1500), 1123 states have internal predecessors, (1500), 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) [2022-04-06 08:41:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1504 transitions. [2022-04-06 08:41:33,374 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1504 transitions. Word has length 205 [2022-04-06 08:41:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:33,374 INFO L478 AbstractCegarLoop]: Abstraction has 1128 states and 1504 transitions. [2022-04-06 08:41:33,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-04-06 08:41:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1504 transitions. [2022-04-06 08:41:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-04-06 08:41:33,376 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:33,377 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:33,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-04-06 08:41:33,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-04-06 08:41:33,589 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:33,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1709317833, now seen corresponding path program 1 times [2022-04-06 08:41:33,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:33,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422847582] [2022-04-06 08:41:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:33,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:33,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422847582] [2022-04-06 08:41:33,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422847582] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:33,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:33,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715369123] [2022-04-06 08:41:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:33,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:33,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:33,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:33,827 INFO L87 Difference]: Start difference. First operand 1128 states and 1504 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:35,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:41:37,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:41:39,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:41:41,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:41:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:41,777 INFO L93 Difference]: Finished difference Result 1490 states and 1989 transitions. [2022-04-06 08:41:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-04-06 08:41:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:41,779 INFO L225 Difference]: With dead ends: 1490 [2022-04-06 08:41:41,779 INFO L226 Difference]: Without dead ends: 1490 [2022-04-06 08:41:41,780 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 [2022-04-06 08:41:41,780 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 89 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 40 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:41,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 294 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 396 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-06 08:41:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-04-06 08:41:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1280. [2022-04-06 08:41:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1275 states have (on average 1.3490196078431373) internal successors, (1720), 1275 states have internal predecessors, (1720), 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) [2022-04-06 08:41:41,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1724 transitions. [2022-04-06 08:41:41,790 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1724 transitions. Word has length 219 [2022-04-06 08:41:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:41,790 INFO L478 AbstractCegarLoop]: Abstraction has 1280 states and 1724 transitions. [2022-04-06 08:41:41,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1724 transitions. [2022-04-06 08:41:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-04-06 08:41:41,792 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:41,792 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:41,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:41:41,792 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1241001243, now seen corresponding path program 1 times [2022-04-06 08:41:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:41,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15051300] [2022-04-06 08:41:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:41,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:41,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:41,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15051300] [2022-04-06 08:41:41,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15051300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:41,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:41,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:41,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601542712] [2022-04-06 08:41:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:41,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:41,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:41,973 INFO L87 Difference]: Start difference. First operand 1280 states and 1724 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:43,981 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 [] [2022-04-06 08:41:44,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:44,310 INFO L93 Difference]: Finished difference Result 1550 states and 2105 transitions. [2022-04-06 08:41:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-04-06 08:41:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:44,312 INFO L225 Difference]: With dead ends: 1550 [2022-04-06 08:41:44,312 INFO L226 Difference]: Without dead ends: 1550 [2022-04-06 08:41:44,312 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 [2022-04-06 08:41:44,313 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 88 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:44,313 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 288 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-04-06 08:41:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1344. [2022-04-06 08:41:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1339 states have (on average 1.3771471247199403) internal successors, (1844), 1339 states have internal predecessors, (1844), 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) [2022-04-06 08:41:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1848 transitions. [2022-04-06 08:41:44,323 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1848 transitions. Word has length 220 [2022-04-06 08:41:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:44,323 INFO L478 AbstractCegarLoop]: Abstraction has 1344 states and 1848 transitions. [2022-04-06 08:41:44,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1848 transitions. [2022-04-06 08:41:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-04-06 08:41:44,324 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:44,325 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:44,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:41:44,325 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1863950338, now seen corresponding path program 1 times [2022-04-06 08:41:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:44,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855758746] [2022-04-06 08:41:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:44,520 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:44,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:44,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855758746] [2022-04-06 08:41:44,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855758746] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:44,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:44,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610645290] [2022-04-06 08:41:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:44,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:44,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:44,527 INFO L87 Difference]: Start difference. First operand 1344 states and 1848 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:46,535 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 [] [2022-04-06 08:41:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:46,867 INFO L93 Difference]: Finished difference Result 1550 states and 2101 transitions. [2022-04-06 08:41:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:46,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-04-06 08:41:46,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:46,869 INFO L225 Difference]: With dead ends: 1550 [2022-04-06 08:41:46,869 INFO L226 Difference]: Without dead ends: 1550 [2022-04-06 08:41:46,869 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 [2022-04-06 08:41:46,869 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 86 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:46,869 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 288 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:46,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-04-06 08:41:46,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1348. [2022-04-06 08:41:46,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.37602382725242) internal successors, (1848), 1343 states have internal predecessors, (1848), 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) [2022-04-06 08:41:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1852 transitions. [2022-04-06 08:41:46,879 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1852 transitions. Word has length 220 [2022-04-06 08:41:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:46,879 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1852 transitions. [2022-04-06 08:41:46,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1852 transitions. [2022-04-06 08:41:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-04-06 08:41:46,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:46,881 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:46,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:41:46,881 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:46,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2069306641, now seen corresponding path program 1 times [2022-04-06 08:41:46,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:46,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867454937] [2022-04-06 08:41:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:47,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:47,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867454937] [2022-04-06 08:41:47,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867454937] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:47,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:47,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:47,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006838438] [2022-04-06 08:41:47,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:47,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:47,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:47,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:47,066 INFO L87 Difference]: Start difference. First operand 1348 states and 1852 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:49,073 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 [] [2022-04-06 08:41:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:49,407 INFO L93 Difference]: Finished difference Result 1542 states and 2089 transitions. [2022-04-06 08:41:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 221 [2022-04-06 08:41:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:49,410 INFO L225 Difference]: With dead ends: 1542 [2022-04-06 08:41:49,410 INFO L226 Difference]: Without dead ends: 1542 [2022-04-06 08:41:49,410 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 [2022-04-06 08:41:49,410 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:49,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 290 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-04-06 08:41:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1352. [2022-04-06 08:41:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1347 states have (on average 1.3749072011878247) internal successors, (1852), 1347 states have internal predecessors, (1852), 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) [2022-04-06 08:41:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1856 transitions. [2022-04-06 08:41:49,420 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1856 transitions. Word has length 221 [2022-04-06 08:41:49,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:49,420 INFO L478 AbstractCegarLoop]: Abstraction has 1352 states and 1856 transitions. [2022-04-06 08:41:49,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:49,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1856 transitions. [2022-04-06 08:41:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-04-06 08:41:49,422 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:49,422 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:49,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:41:49,422 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:49,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 105351703, now seen corresponding path program 1 times [2022-04-06 08:41:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:49,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097819001] [2022-04-06 08:41:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:49,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-04-06 08:41:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:49,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097819001] [2022-04-06 08:41:49,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097819001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:49,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:49,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:49,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675554699] [2022-04-06 08:41:49,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:49,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:49,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:49,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:49,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:49,599 INFO L87 Difference]: Start difference. First operand 1352 states and 1856 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:51,607 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 [] [2022-04-06 08:41:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:51,932 INFO L93 Difference]: Finished difference Result 1530 states and 2069 transitions. [2022-04-06 08:41:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:51,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 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 222 [2022-04-06 08:41:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:51,935 INFO L225 Difference]: With dead ends: 1530 [2022-04-06 08:41:51,935 INFO L226 Difference]: Without dead ends: 1526 [2022-04-06 08:41:51,935 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 [2022-04-06 08:41:51,935 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 79 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:51,935 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:51,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2022-04-06 08:41:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1360. [2022-04-06 08:41:51,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1355 states have (on average 1.3756457564575646) internal successors, (1864), 1355 states have internal predecessors, (1864), 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) [2022-04-06 08:41:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1868 transitions. [2022-04-06 08:41:51,944 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1868 transitions. Word has length 222 [2022-04-06 08:41:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:51,945 INFO L478 AbstractCegarLoop]: Abstraction has 1360 states and 1868 transitions. [2022-04-06 08:41:51,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1868 transitions. [2022-04-06 08:41:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-06 08:41:51,946 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:51,946 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:51,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:41:51,947 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:51,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:51,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1790899510, now seen corresponding path program 2 times [2022-04-06 08:41:51,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:51,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575945087] [2022-04-06 08:41:51,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:51,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-04-06 08:41:52,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:52,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575945087] [2022-04-06 08:41:52,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575945087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:52,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:52,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:52,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578341027] [2022-04-06 08:41:52,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:52,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:52,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:52,136 INFO L87 Difference]: Start difference. First operand 1360 states and 1868 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:54,143 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 [] [2022-04-06 08:41:54,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:54,484 INFO L93 Difference]: Finished difference Result 1694 states and 2289 transitions. [2022-04-06 08:41:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:54,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-04-06 08:41:54,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:54,487 INFO L225 Difference]: With dead ends: 1694 [2022-04-06 08:41:54,487 INFO L226 Difference]: Without dead ends: 1694 [2022-04-06 08:41:54,487 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 [2022-04-06 08:41:54,488 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 86 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:54,488 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-04-06 08:41:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1492. [2022-04-06 08:41:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1487 states have (on average 1.3691997310020174) internal successors, (2036), 1487 states have internal predecessors, (2036), 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) [2022-04-06 08:41:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2040 transitions. [2022-04-06 08:41:54,499 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2040 transitions. Word has length 250 [2022-04-06 08:41:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:54,499 INFO L478 AbstractCegarLoop]: Abstraction has 1492 states and 2040 transitions. [2022-04-06 08:41:54,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2040 transitions. [2022-04-06 08:41:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-06 08:41:54,501 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:54,501 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:54,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:41:54,501 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash 664401366, now seen corresponding path program 1 times [2022-04-06 08:41:54,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:54,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19495048] [2022-04-06 08:41:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:54,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-04-06 08:41:54,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:54,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19495048] [2022-04-06 08:41:54,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19495048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:54,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:54,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:54,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737599874] [2022-04-06 08:41:54,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:54,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:54,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:54,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:54,675 INFO L87 Difference]: Start difference. First operand 1492 states and 2040 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:56,684 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 [] [2022-04-06 08:41:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:57,004 INFO L93 Difference]: Finished difference Result 1822 states and 2453 transitions. [2022-04-06 08:41:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:57,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-04-06 08:41:57,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:57,016 INFO L225 Difference]: With dead ends: 1822 [2022-04-06 08:41:57,017 INFO L226 Difference]: Without dead ends: 1822 [2022-04-06 08:41:57,017 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 [2022-04-06 08:41:57,017 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 84 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:57,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 300 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-04-06 08:41:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1628. [2022-04-06 08:41:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3653727664818238) internal successors, (2216), 1623 states have internal predecessors, (2216), 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) [2022-04-06 08:41:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2220 transitions. [2022-04-06 08:41:57,028 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2220 transitions. Word has length 250 [2022-04-06 08:41:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:57,028 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2220 transitions. [2022-04-06 08:41:57,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2220 transitions. [2022-04-06 08:41:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-04-06 08:41:57,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:57,030 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:57,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:41:57,030 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:57,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1517995278, now seen corresponding path program 1 times [2022-04-06 08:41:57,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:57,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026310534] [2022-04-06 08:41:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:57,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:57,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-04-06 08:41:57,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:57,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026310534] [2022-04-06 08:41:57,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026310534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:57,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:57,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:57,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43402536] [2022-04-06 08:41:57,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:57,209 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:57,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:57,209 INFO L87 Difference]: Start difference. First operand 1628 states and 2220 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:59,218 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 [] [2022-04-06 08:41:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:41:59,552 INFO L93 Difference]: Finished difference Result 1794 states and 2405 transitions. [2022-04-06 08:41:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:41:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-04-06 08:41:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:41:59,555 INFO L225 Difference]: With dead ends: 1794 [2022-04-06 08:41:59,555 INFO L226 Difference]: Without dead ends: 1794 [2022-04-06 08:41:59,555 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 [2022-04-06 08:41:59,555 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 85 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:41:59,555 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 298 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:41:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-04-06 08:41:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1628. [2022-04-06 08:41:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3579790511398644) internal successors, (2204), 1623 states have internal predecessors, (2204), 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) [2022-04-06 08:41:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2208 transitions. [2022-04-06 08:41:59,567 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2208 transitions. Word has length 252 [2022-04-06 08:41:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:41:59,567 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2208 transitions. [2022-04-06 08:41:59,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:41:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2208 transitions. [2022-04-06 08:41:59,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-04-06 08:41:59,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:41:59,569 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:41:59,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:41:59,569 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:41:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:41:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1056612690, now seen corresponding path program 1 times [2022-04-06 08:41:59,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:41:59,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261939023] [2022-04-06 08:41:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:41:59,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:41:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:41:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:41:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-04-06 08:41:59,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:41:59,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261939023] [2022-04-06 08:41:59,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261939023] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:41:59,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:41:59,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:41:59,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137551901] [2022-04-06 08:41:59,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:41:59,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:41:59,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:41:59,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:41:59,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:41:59,729 INFO L87 Difference]: Start difference. First operand 1628 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:01,737 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 [] [2022-04-06 08:42:02,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:02,018 INFO L93 Difference]: Finished difference Result 1642 states and 2218 transitions. [2022-04-06 08:42:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-04-06 08:42:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:02,028 INFO L225 Difference]: With dead ends: 1642 [2022-04-06 08:42:02,028 INFO L226 Difference]: Without dead ends: 1642 [2022-04-06 08:42:02,029 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 [2022-04-06 08:42:02,029 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 14 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:02,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 460 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:42:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2022-04-06 08:42:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1628. [2022-04-06 08:42:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1623 states have (on average 1.3555144793592113) internal successors, (2200), 1623 states have internal predecessors, (2200), 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) [2022-04-06 08:42:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2204 transitions. [2022-04-06 08:42:02,041 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2204 transitions. Word has length 252 [2022-04-06 08:42:02,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:02,041 INFO L478 AbstractCegarLoop]: Abstraction has 1628 states and 2204 transitions. [2022-04-06 08:42:02,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:02,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2204 transitions. [2022-04-06 08:42:02,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-04-06 08:42:02,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:02,043 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:02,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:42:02,043 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:02,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:02,043 INFO L85 PathProgramCache]: Analyzing trace with hash 13485327, now seen corresponding path program 1 times [2022-04-06 08:42:02,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:02,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131348020] [2022-04-06 08:42:02,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:02,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-04-06 08:42:02,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:02,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131348020] [2022-04-06 08:42:02,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131348020] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:02,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:02,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:02,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024342527] [2022-04-06 08:42:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:02,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:02,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:02,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:02,222 INFO L87 Difference]: Start difference. First operand 1628 states and 2204 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:04,232 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 [] [2022-04-06 08:42:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:04,499 INFO L93 Difference]: Finished difference Result 1744 states and 2344 transitions. [2022-04-06 08:42:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-04-06 08:42:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:04,502 INFO L225 Difference]: With dead ends: 1744 [2022-04-06 08:42:04,502 INFO L226 Difference]: Without dead ends: 1744 [2022-04-06 08:42:04,502 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 [2022-04-06 08:42:04,502 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 12 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:04,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 456 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:42:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-04-06 08:42:04,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1732. [2022-04-06 08:42:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1727 states have (on average 1.3456861609727853) internal successors, (2324), 1727 states have internal predecessors, (2324), 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) [2022-04-06 08:42:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2328 transitions. [2022-04-06 08:42:04,515 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2328 transitions. Word has length 274 [2022-04-06 08:42:04,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:04,516 INFO L478 AbstractCegarLoop]: Abstraction has 1732 states and 2328 transitions. [2022-04-06 08:42:04,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2328 transitions. [2022-04-06 08:42:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 08:42:04,518 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:04,518 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:04,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:42:04,518 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1425199128, now seen corresponding path program 1 times [2022-04-06 08:42:04,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:04,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386782862] [2022-04-06 08:42:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-04-06 08:42:04,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:04,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386782862] [2022-04-06 08:42:04,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386782862] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:04,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:04,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:04,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293138306] [2022-04-06 08:42:04,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:04,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:04,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:04,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:04,790 INFO L87 Difference]: Start difference. First operand 1732 states and 2328 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:06,799 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 [] [2022-04-06 08:42:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:07,122 INFO L93 Difference]: Finished difference Result 1898 states and 2517 transitions. [2022-04-06 08:42:07,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:07,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 298 [2022-04-06 08:42:07,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:07,125 INFO L225 Difference]: With dead ends: 1898 [2022-04-06 08:42:07,125 INFO L226 Difference]: Without dead ends: 1898 [2022-04-06 08:42:07,125 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 [2022-04-06 08:42:07,126 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 83 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:07,126 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 298 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:42:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-04-06 08:42:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1732. [2022-04-06 08:42:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1727 states have (on average 1.3410538506079908) internal successors, (2316), 1727 states have internal predecessors, (2316), 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) [2022-04-06 08:42:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2320 transitions. [2022-04-06 08:42:07,138 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2320 transitions. Word has length 298 [2022-04-06 08:42:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:07,139 INFO L478 AbstractCegarLoop]: Abstraction has 1732 states and 2320 transitions. [2022-04-06 08:42:07,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:07,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2320 transitions. [2022-04-06 08:42:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-04-06 08:42:07,141 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:07,141 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:07,141 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 08:42:07,141 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:07,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2074742642, now seen corresponding path program 1 times [2022-04-06 08:42:07,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:07,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322396805] [2022-04-06 08:42:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:07,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 546 proven. 238 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-04-06 08:42:10,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:10,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322396805] [2022-04-06 08:42:10,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322396805] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:42:10,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016017597] [2022-04-06 08:42:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:10,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:42:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:42:10,333 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:42:10,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-04-06 08:42:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:12,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 176 conjunts are in the unsatisfiable core [2022-04-06 08:42:12,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:42:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:42:12,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 40 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13354 treesize of output 937 [2022-04-06 08:42:12,906 INFO L244 Elim1Store]: Index analysis took 128 ms [2022-04-06 08:42:32,952 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-06 08:42:32,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-04-06 08:42:32,956 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-04-06 08:42:32,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-04-06 08:42:33,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-04-06 08:42:33,157 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 74 more [2022-04-06 08:42:33,160 INFO L158 Benchmark]: Toolchain (without parser) took 204282.28ms. Allocated memory was 198.2MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 138.3MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-04-06 08:42:33,160 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 08:42:33,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.49ms. Allocated memory was 198.2MB in the beginning and 262.1MB in the end (delta: 64.0MB). Free memory was 138.0MB in the beginning and 213.1MB in the end (delta: -75.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-06 08:42:33,160 INFO L158 Benchmark]: Boogie Preprocessor took 115.51ms. Allocated memory is still 262.1MB. Free memory was 213.1MB in the beginning and 206.3MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-06 08:42:33,160 INFO L158 Benchmark]: RCFGBuilder took 1591.09ms. Allocated memory is still 262.1MB. Free memory was 205.8MB in the beginning and 118.7MB in the end (delta: 87.0MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2022-04-06 08:42:33,161 INFO L158 Benchmark]: IcfgTransformer took 59.00ms. Allocated memory is still 262.1MB. Free memory was 118.7MB in the beginning and 222.5MB in the end (delta: -103.8MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-04-06 08:42:33,161 INFO L158 Benchmark]: TraceAbstraction took 201949.83ms. Allocated memory was 262.1MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 222.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-04-06 08:42:33,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 562.49ms. Allocated memory was 198.2MB in the beginning and 262.1MB in the end (delta: 64.0MB). Free memory was 138.0MB in the beginning and 213.1MB in the end (delta: -75.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 115.51ms. Allocated memory is still 262.1MB. Free memory was 213.1MB in the beginning and 206.3MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1591.09ms. Allocated memory is still 262.1MB. Free memory was 205.8MB in the beginning and 118.7MB in the end (delta: 87.0MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * IcfgTransformer took 59.00ms. Allocated memory is still 262.1MB. Free memory was 118.7MB in the beginning and 222.5MB in the end (delta: -103.8MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * TraceAbstraction took 201949.83ms. Allocated memory was 262.1MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 222.0MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...