/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:05:51,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:05:51,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:05:51,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:05:51,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:05:51,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:05:51,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:05:51,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:05:51,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:05:51,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:05:51,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:05:51,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:05:51,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:05:51,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:05:51,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:05:51,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:05:51,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:05:51,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:05:51,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:05:51,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:05:51,961 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:05:51,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:05:51,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:05:51,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:05:51,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:05:51,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-18 21:05:51,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:05:51,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:05:51,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:05:51,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:05:51,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:05:51,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:05:51,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:05:51,990 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:05:51,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:05:51,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:05:51,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:05:51,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:05:51,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:05:51,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:05:51,993 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:05:52,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:05:52,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:05:52,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:05:52,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:05:52,193 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:05:52,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-18 21:05:52,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc69d9b6/67b939ae5581489d89b929a18bc9b4e8/FLAGa8a368a1e [2022-03-18 21:05:52,630 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:05:52,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-18 21:05:52,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc69d9b6/67b939ae5581489d89b929a18bc9b4e8/FLAGa8a368a1e [2022-03-18 21:05:53,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adc69d9b6/67b939ae5581489d89b929a18bc9b4e8 [2022-03-18 21:05:53,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:05:53,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:05:53,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:05:53,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:05:53,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:05:53,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878334c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53, skipping insertion in model container [2022-03-18 21:05:53,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:05:53,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:05:53,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-18 21:05:53,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:05:53,390 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:05:53,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-18 21:05:53,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:05:53,459 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:05:53,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53 WrapperNode [2022-03-18 21:05:53,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:05:53,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:05:53,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:05:53,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:05:53,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:05:53,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:05:53,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:05:53,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:05:53,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (1/1) ... [2022-03-18 21:05:53,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:05:53,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:05:53,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 21:05:53,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 21:05:53,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:05:53,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:05:53,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:05:53,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-18 21:05:53,585 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-18 21:05:53,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:05:53,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-18 21:05:53,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:05:53,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:05:53,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:05:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:05:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:05:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:05:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:05:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:05:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:05:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:05:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:05:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:05:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:05:53,764 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:05:53,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:05:54,851 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:05:55,166 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-18 21:05:55,167 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-18 21:05:55,182 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:05:55,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:05:55,188 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:05:55,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:05:55 BoogieIcfgContainer [2022-03-18 21:05:55,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:05:55,190 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:05:55,190 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:05:55,191 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:05:55,193 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:05:55" (1/1) ... [2022-03-18 21:05:55,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:05:55 BasicIcfg [2022-03-18 21:05:55,227 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:05:55,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:05:55,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:05:55,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:05:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:05:53" (1/4) ... [2022-03-18 21:05:55,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6482ddac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:05:55, skipping insertion in model container [2022-03-18 21:05:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:05:53" (2/4) ... [2022-03-18 21:05:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6482ddac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:05:55, skipping insertion in model container [2022-03-18 21:05:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:05:55" (3/4) ... [2022-03-18 21:05:55,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6482ddac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:05:55, skipping insertion in model container [2022-03-18 21:05:55,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:05:55" (4/4) ... [2022-03-18 21:05:55,236 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.cJordan [2022-03-18 21:05:55,243 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:05:55,244 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:05:55,282 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:05:55,287 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 21:05:55,287 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:05:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:05:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-18 21:05:55,307 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:05:55,307 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:05:55,307 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:05:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:05:55,311 INFO L85 PathProgramCache]: Analyzing trace with hash -106935299, now seen corresponding path program 1 times [2022-03-18 21:05:55,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:05:55,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108855993] [2022-03-18 21:05:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:05:55,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:05:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:05:55,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:05:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:05:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:05:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:05:55,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108855993] [2022-03-18 21:05:55,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108855993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:05:55,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:05:55,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:05:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334067241] [2022-03-18 21:05:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:05:55,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:05:55,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:05:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:05:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:05:55,710 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:05:57,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:05:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:05:58,066 INFO L93 Difference]: Finished difference Result 144 states and 228 transitions. [2022-03-18 21:05:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:05:58,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-18 21:05:58,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:05:58,073 INFO L225 Difference]: With dead ends: 144 [2022-03-18 21:05:58,073 INFO L226 Difference]: Without dead ends: 124 [2022-03-18 21:05:58,074 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:05:58,076 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:05:58,077 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:05:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-03-18 21:05:58,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-03-18 21:05:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:05:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-03-18 21:05:58,103 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-03-18 21:05:58,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:05:58,103 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-03-18 21:05:58,103 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:05:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-03-18 21:05:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-18 21:05:58,104 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:05:58,105 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:05:58,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:05:58,105 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:05:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:05:58,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1091565072, now seen corresponding path program 1 times [2022-03-18 21:05:58,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:05:58,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267356813] [2022-03-18 21:05:58,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:05:58,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:05:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:05:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:05:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:05:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:05:58,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:05:58,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267356813] [2022-03-18 21:05:58,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267356813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:05:58,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:05:58,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:05:58,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081835646] [2022-03-18 21:05:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:05:58,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:05:58,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:05:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:05:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:05:58,317 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:00,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:00,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:00,550 INFO L93 Difference]: Finished difference Result 226 states and 330 transitions. [2022-03-18 21:06:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:06:00,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-03-18 21:06:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:00,552 INFO L225 Difference]: With dead ends: 226 [2022-03-18 21:06:00,552 INFO L226 Difference]: Without dead ends: 226 [2022-03-18 21:06:00,552 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:00,553 INFO L912 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:00,553 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:06:00,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-18 21:06:00,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-03-18 21:06:00,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-03-18 21:06:00,564 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-03-18 21:06:00,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:00,564 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-03-18 21:06:00,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-03-18 21:06:00,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-18 21:06:00,566 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:00,566 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:00,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:06:00,566 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:00,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:00,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1300196515, now seen corresponding path program 1 times [2022-03-18 21:06:00,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:00,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478408758] [2022-03-18 21:06:00,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:00,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:00,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:00,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478408758] [2022-03-18 21:06:00,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478408758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:00,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:00,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:00,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012757627] [2022-03-18 21:06:00,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:00,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:00,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:00,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:00,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:00,776 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:03,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:05,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:07,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:07,795 INFO L93 Difference]: Finished difference Result 261 states and 382 transitions. [2022-03-18 21:06:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:07,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-18 21:06:07,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:07,797 INFO L225 Difference]: With dead ends: 261 [2022-03-18 21:06:07,797 INFO L226 Difference]: Without dead ends: 261 [2022-03-18 21:06:07,798 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:07,798 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:07,799 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-18 21:06:07,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-18 21:06:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-18 21:06:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-03-18 21:06:07,816 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-03-18 21:06:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:07,816 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-03-18 21:06:07,817 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-03-18 21:06:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-18 21:06:07,819 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:07,819 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:07,819 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:06:07,819 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:07,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:07,820 INFO L85 PathProgramCache]: Analyzing trace with hash 894178960, now seen corresponding path program 2 times [2022-03-18 21:06:07,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:07,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733163252] [2022-03-18 21:06:07,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:07,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:08,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:08,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733163252] [2022-03-18 21:06:08,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733163252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:08,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:08,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37329515] [2022-03-18 21:06:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:08,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:08,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:08,066 INFO L87 Difference]: Start difference. First operand 244 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:10,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:10,393 INFO L93 Difference]: Finished difference Result 260 states and 380 transitions. [2022-03-18 21:06:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-18 21:06:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:10,394 INFO L225 Difference]: With dead ends: 260 [2022-03-18 21:06:10,395 INFO L226 Difference]: Without dead ends: 260 [2022-03-18 21:06:10,395 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:10,395 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:10,396 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-18 21:06:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2022-03-18 21:06:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 239 states have internal predecessors, (355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 359 transitions. [2022-03-18 21:06:10,405 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 359 transitions. Word has length 75 [2022-03-18 21:06:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:10,405 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 359 transitions. [2022-03-18 21:06:10,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 359 transitions. [2022-03-18 21:06:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-18 21:06:10,407 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:10,407 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:10,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:06:10,407 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash -765124944, now seen corresponding path program 1 times [2022-03-18 21:06:10,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938538529] [2022-03-18 21:06:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:10,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938538529] [2022-03-18 21:06:10,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938538529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:10,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:10,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:10,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323700906] [2022-03-18 21:06:10,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:10,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:10,543 INFO L87 Difference]: Start difference. First operand 244 states and 359 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:12,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:12,946 INFO L93 Difference]: Finished difference Result 429 states and 634 transitions. [2022-03-18 21:06:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:12,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-18 21:06:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:12,947 INFO L225 Difference]: With dead ends: 429 [2022-03-18 21:06:12,948 INFO L226 Difference]: Without dead ends: 429 [2022-03-18 21:06:12,948 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:12,948 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:12,949 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-18 21:06:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 268. [2022-03-18 21:06:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4828897338403042) internal successors, (390), 263 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 394 transitions. [2022-03-18 21:06:12,960 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 394 transitions. Word has length 75 [2022-03-18 21:06:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:12,960 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 394 transitions. [2022-03-18 21:06:12,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 394 transitions. [2022-03-18 21:06:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-18 21:06:12,962 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:12,962 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:12,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:06:12,962 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash 420689370, now seen corresponding path program 1 times [2022-03-18 21:06:12,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:12,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286921901] [2022-03-18 21:06:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:13,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:13,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286921901] [2022-03-18 21:06:13,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286921901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:13,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:13,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:13,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593049061] [2022-03-18 21:06:13,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:13,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:13,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:13,100 INFO L87 Difference]: Start difference. First operand 268 states and 394 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:14,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:16,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:18,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:20,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:20,711 INFO L93 Difference]: Finished difference Result 429 states and 631 transitions. [2022-03-18 21:06:20,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:20,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-18 21:06:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:20,713 INFO L225 Difference]: With dead ends: 429 [2022-03-18 21:06:20,713 INFO L226 Difference]: Without dead ends: 429 [2022-03-18 21:06:20,714 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:20,714 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:20,714 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 306 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 397 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-18 21:06:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-18 21:06:20,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 270. [2022-03-18 21:06:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4754716981132074) internal successors, (391), 265 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:20,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2022-03-18 21:06:20,720 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 76 [2022-03-18 21:06:20,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:20,720 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2022-03-18 21:06:20,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2022-03-18 21:06:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-18 21:06:20,721 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:20,722 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:20,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:06:20,722 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash -70572812, now seen corresponding path program 1 times [2022-03-18 21:06:20,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:20,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627628771] [2022-03-18 21:06:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:20,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:20,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:20,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627628771] [2022-03-18 21:06:20,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627628771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:20,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:20,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338356469] [2022-03-18 21:06:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:20,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:20,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:20,850 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:22,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:23,183 INFO L93 Difference]: Finished difference Result 286 states and 415 transitions. [2022-03-18 21:06:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-18 21:06:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:23,185 INFO L225 Difference]: With dead ends: 286 [2022-03-18 21:06:23,185 INFO L226 Difference]: Without dead ends: 286 [2022-03-18 21:06:23,185 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:23,186 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 31 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:23,186 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-18 21:06:23,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 270. [2022-03-18 21:06:23,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.471698113207547) internal successors, (390), 265 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 394 transitions. [2022-03-18 21:06:23,195 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 394 transitions. Word has length 77 [2022-03-18 21:06:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:23,196 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 394 transitions. [2022-03-18 21:06:23,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:23,196 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 394 transitions. [2022-03-18 21:06:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 21:06:23,197 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:23,197 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:23,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:06:23,197 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:23,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1362398755, now seen corresponding path program 1 times [2022-03-18 21:06:23,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:23,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785155766] [2022-03-18 21:06:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:23,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:23,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:23,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785155766] [2022-03-18 21:06:23,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785155766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:23,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:23,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:23,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905431769] [2022-03-18 21:06:23,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:23,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:23,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:23,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:23,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:23,445 INFO L87 Difference]: Start difference. First operand 270 states and 394 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:25,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:25,834 INFO L93 Difference]: Finished difference Result 429 states and 627 transitions. [2022-03-18 21:06:25,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:25,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-18 21:06:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:25,836 INFO L225 Difference]: With dead ends: 429 [2022-03-18 21:06:25,836 INFO L226 Difference]: Without dead ends: 429 [2022-03-18 21:06:25,836 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:25,836 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 115 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:25,837 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-18 21:06:25,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 274. [2022-03-18 21:06:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.4684014869888475) internal successors, (395), 269 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:25,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 399 transitions. [2022-03-18 21:06:25,843 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 399 transitions. Word has length 78 [2022-03-18 21:06:25,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:25,843 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 399 transitions. [2022-03-18 21:06:25,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:25,843 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 399 transitions. [2022-03-18 21:06:25,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 21:06:25,844 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:25,844 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:25,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:06:25,844 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1733724060, now seen corresponding path program 1 times [2022-03-18 21:06:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:25,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129611326] [2022-03-18 21:06:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-18 21:06:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:25,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129611326] [2022-03-18 21:06:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129611326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:06:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047276499] [2022-03-18 21:06:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:25,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:06:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:06:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:25,990 INFO L87 Difference]: Start difference. First operand 274 states and 399 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:27,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:28,439 INFO L93 Difference]: Finished difference Result 411 states and 598 transitions. [2022-03-18 21:06:28,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:06:28,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-18 21:06:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:28,441 INFO L225 Difference]: With dead ends: 411 [2022-03-18 21:06:28,441 INFO L226 Difference]: Without dead ends: 411 [2022-03-18 21:06:28,441 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:28,442 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:28,442 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:28,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-03-18 21:06:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-03-18 21:06:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 406 states have (on average 1.4630541871921183) internal successors, (594), 406 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2022-03-18 21:06:28,449 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 78 [2022-03-18 21:06:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:28,449 INFO L478 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2022-03-18 21:06:28,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2022-03-18 21:06:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 21:06:28,450 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:28,450 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:28,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:06:28,451 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:28,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:28,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1702704253, now seen corresponding path program 1 times [2022-03-18 21:06:28,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:28,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282010524] [2022-03-18 21:06:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:28,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:28,612 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:06:28,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:28,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282010524] [2022-03-18 21:06:28,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282010524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:28,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:28,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:06:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913158802] [2022-03-18 21:06:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:28,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:06:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:06:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:28,614 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:30,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:30,874 INFO L93 Difference]: Finished difference Result 435 states and 630 transitions. [2022-03-18 21:06:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:06:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-18 21:06:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:30,876 INFO L225 Difference]: With dead ends: 435 [2022-03-18 21:06:30,876 INFO L226 Difference]: Without dead ends: 435 [2022-03-18 21:06:30,876 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:30,876 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:30,877 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:06:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-18 21:06:30,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-03-18 21:06:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.455813953488372) internal successors, (626), 430 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:30,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 630 transitions. [2022-03-18 21:06:30,883 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 630 transitions. Word has length 78 [2022-03-18 21:06:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:30,883 INFO L478 AbstractCegarLoop]: Abstraction has 435 states and 630 transitions. [2022-03-18 21:06:30,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 630 transitions. [2022-03-18 21:06:30,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-18 21:06:30,884 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:30,885 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:30,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:06:30,885 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash -283396127, now seen corresponding path program 1 times [2022-03-18 21:06:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:30,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491282759] [2022-03-18 21:06:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:06:31,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:31,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491282759] [2022-03-18 21:06:31,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491282759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:31,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:31,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:06:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415976963] [2022-03-18 21:06:31,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:31,093 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:06:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:31,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:06:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:31,094 INFO L87 Difference]: Start difference. First operand 435 states and 630 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:33,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:33,452 INFO L93 Difference]: Finished difference Result 571 states and 828 transitions. [2022-03-18 21:06:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:06:33,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-18 21:06:33,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:33,471 INFO L225 Difference]: With dead ends: 571 [2022-03-18 21:06:33,472 INFO L226 Difference]: Without dead ends: 571 [2022-03-18 21:06:33,472 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:33,473 INFO L912 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:33,473 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:33,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-18 21:06:33,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2022-03-18 21:06:33,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 566 states have (on average 1.4558303886925794) internal successors, (824), 566 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:33,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 828 transitions. [2022-03-18 21:06:33,499 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 828 transitions. Word has length 98 [2022-03-18 21:06:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:33,500 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 828 transitions. [2022-03-18 21:06:33,500 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 828 transitions. [2022-03-18 21:06:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-18 21:06:33,501 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:33,501 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:33,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:06:33,501 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1286229179, now seen corresponding path program 1 times [2022-03-18 21:06:33,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:33,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259576933] [2022-03-18 21:06:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 21:06:33,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:33,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259576933] [2022-03-18 21:06:33,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259576933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:33,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:33,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:06:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864909599] [2022-03-18 21:06:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:33,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:06:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:06:33,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:33,631 INFO L87 Difference]: Start difference. First operand 571 states and 828 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:35,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:35,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:35,982 INFO L93 Difference]: Finished difference Result 706 states and 1024 transitions. [2022-03-18 21:06:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:06:35,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-18 21:06:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:35,985 INFO L225 Difference]: With dead ends: 706 [2022-03-18 21:06:35,985 INFO L226 Difference]: Without dead ends: 706 [2022-03-18 21:06:35,985 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:06:35,985 INFO L912 BasicCegarLoop]: 316 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:35,985 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 480 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:06:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-03-18 21:06:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2022-03-18 21:06:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 701 states have (on average 1.4550641940085591) internal successors, (1020), 701 states have internal predecessors, (1020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1024 transitions. [2022-03-18 21:06:35,994 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1024 transitions. Word has length 119 [2022-03-18 21:06:35,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:35,995 INFO L478 AbstractCegarLoop]: Abstraction has 706 states and 1024 transitions. [2022-03-18 21:06:35,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1024 transitions. [2022-03-18 21:06:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:06:35,996 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:35,996 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:35,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:06:35,997 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash -768225432, now seen corresponding path program 1 times [2022-03-18 21:06:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:35,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954890099] [2022-03-18 21:06:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-18 21:06:36,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:36,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954890099] [2022-03-18 21:06:36,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954890099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:36,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:36,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:36,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144376350] [2022-03-18 21:06:36,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:36,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:36,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:36,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:36,171 INFO L87 Difference]: Start difference. First operand 706 states and 1024 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:38,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:38,548 INFO L93 Difference]: Finished difference Result 1169 states and 1691 transitions. [2022-03-18 21:06:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-18 21:06:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:38,551 INFO L225 Difference]: With dead ends: 1169 [2022-03-18 21:06:38,551 INFO L226 Difference]: Without dead ends: 1169 [2022-03-18 21:06:38,552 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:38,552 INFO L912 BasicCegarLoop]: 100 mSDtfsCounter, 110 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:38,552 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 286 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-03-18 21:06:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 811. [2022-03-18 21:06:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 806 states have (on average 1.4640198511166254) internal successors, (1180), 806 states have internal predecessors, (1180), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1184 transitions. [2022-03-18 21:06:38,564 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1184 transitions. Word has length 145 [2022-03-18 21:06:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:38,565 INFO L478 AbstractCegarLoop]: Abstraction has 811 states and 1184 transitions. [2022-03-18 21:06:38,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1184 transitions. [2022-03-18 21:06:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:06:38,566 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:38,566 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:38,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:06:38,567 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:38,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1738516439, now seen corresponding path program 1 times [2022-03-18 21:06:38,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:38,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211131073] [2022-03-18 21:06:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:38,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 21:06:38,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:38,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211131073] [2022-03-18 21:06:38,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211131073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:38,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812083532] [2022-03-18 21:06:38,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:38,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:38,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:38,767 INFO L87 Difference]: Start difference. First operand 811 states and 1184 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:40,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:41,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:41,222 INFO L93 Difference]: Finished difference Result 1022 states and 1471 transitions. [2022-03-18 21:06:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:41,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 145 [2022-03-18 21:06:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:41,225 INFO L225 Difference]: With dead ends: 1022 [2022-03-18 21:06:41,225 INFO L226 Difference]: Without dead ends: 1022 [2022-03-18 21:06:41,225 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:41,226 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 45 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:41,226 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 523 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:41,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-03-18 21:06:41,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 907. [2022-03-18 21:06:41,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.476718403547672) internal successors, (1332), 902 states have internal predecessors, (1332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:41,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1336 transitions. [2022-03-18 21:06:41,240 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1336 transitions. Word has length 145 [2022-03-18 21:06:41,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:41,240 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1336 transitions. [2022-03-18 21:06:41,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1336 transitions. [2022-03-18 21:06:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-18 21:06:41,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:41,242 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:41,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:06:41,242 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:41,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:41,243 INFO L85 PathProgramCache]: Analyzing trace with hash -431686358, now seen corresponding path program 2 times [2022-03-18 21:06:41,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:41,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928096063] [2022-03-18 21:06:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:41,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-18 21:06:41,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:41,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928096063] [2022-03-18 21:06:41,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928096063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:41,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:41,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:41,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899291120] [2022-03-18 21:06:41,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:41,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:41,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:41,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:41,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:41,432 INFO L87 Difference]: Start difference. First operand 907 states and 1336 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:42,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:44,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:46,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:48,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:49,288 INFO L93 Difference]: Finished difference Result 1285 states and 1874 transitions. [2022-03-18 21:06:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:49,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 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 160 [2022-03-18 21:06:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:49,292 INFO L225 Difference]: With dead ends: 1285 [2022-03-18 21:06:49,292 INFO L226 Difference]: Without dead ends: 1285 [2022-03-18 21:06:49,293 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:49,293 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 110 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:49,293 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 302 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 382 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-18 21:06:49,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-03-18 21:06:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 907. [2022-03-18 21:06:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4611973392461197) internal successors, (1318), 902 states have internal predecessors, (1318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1322 transitions. [2022-03-18 21:06:49,307 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1322 transitions. Word has length 160 [2022-03-18 21:06:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:49,308 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1322 transitions. [2022-03-18 21:06:49,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1322 transitions. [2022-03-18 21:06:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-18 21:06:49,310 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:49,310 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:49,310 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:06:49,310 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1903781070, now seen corresponding path program 1 times [2022-03-18 21:06:49,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:49,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904148424] [2022-03-18 21:06:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-18 21:06:49,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:49,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904148424] [2022-03-18 21:06:49,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904148424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:06:49,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:06:49,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:06:49,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972869700] [2022-03-18 21:06:49,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:06:49,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:06:49,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:06:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:06:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:06:49,465 INFO L87 Difference]: Start difference. First operand 907 states and 1322 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:51,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:06:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:06:51,862 INFO L93 Difference]: Finished difference Result 1286 states and 1861 transitions. [2022-03-18 21:06:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:06:51,863 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 162 [2022-03-18 21:06:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:06:51,866 INFO L225 Difference]: With dead ends: 1286 [2022-03-18 21:06:51,866 INFO L226 Difference]: Without dead ends: 1286 [2022-03-18 21:06:51,866 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:06:51,867 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 115 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:06:51,867 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:06:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-18 21:06:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 907. [2022-03-18 21:06:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4456762749445675) internal successors, (1304), 902 states have internal predecessors, (1304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1308 transitions. [2022-03-18 21:06:51,898 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1308 transitions. Word has length 162 [2022-03-18 21:06:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:06:51,898 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1308 transitions. [2022-03-18 21:06:51,898 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:06:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1308 transitions. [2022-03-18 21:06:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-18 21:06:51,900 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:06:51,900 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:06:51,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:06:51,900 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:06:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:06:51,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1242164081, now seen corresponding path program 1 times [2022-03-18 21:06:51,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:06:51,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392840984] [2022-03-18 21:06:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:51,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:06:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:06:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 229 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-18 21:06:52,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:06:52,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392840984] [2022-03-18 21:06:52,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392840984] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:06:52,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913791667] [2022-03-18 21:06:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:06:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:06:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:06:52,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:06:52,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:06:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:06:52,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-18 21:06:52,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:06:52,908 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-18 21:06:52,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-18 21:06:52,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-18 21:06:52,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-18 21:06:52,929 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