./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:28:50,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:28:50,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:28:50,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:28:50,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:28:50,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:28:50,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:28:50,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:28:50,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:28:50,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:28:50,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:28:50,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:28:50,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:28:50,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:28:50,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:28:50,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:28:50,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:28:50,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:28:50,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:28:50,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:28:50,247 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:28:50,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:28:50,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:28:50,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:28:50,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:28:50,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:28:50,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:28:50,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:28:50,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:28:50,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:28:50,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:28:50,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:28:50,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:28:50,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:28:50,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:28:50,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:28:50,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:28:50,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:28:50,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:28:50,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:28:50,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:28:50,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:28:50,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:28:50,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:28:50,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:28:50,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:28:50,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:28:50,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:28:50,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:28:50,294 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:28:50,294 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:28:50,295 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:28:50,295 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:28:50,296 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:28:50,296 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:28:50,296 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:28:50,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:28:50,296 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:28:50,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:28:50,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:28:50,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:28:50,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:28:50,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:28:50,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:28:50,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:28:50,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:28:50,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:28:50,299 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:28:50,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:28:50,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:28:50,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:28:50,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:28:50,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:28:50,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:28:50,302 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:28:50,302 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f [2022-07-13 03:28:50,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:28:50,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:28:50,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:28:50,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:28:50,500 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:28:50,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2022-07-13 03:28:50,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff6fc5e2/e9d0493f00f54282b2c5e83105e1feaa/FLAGf99da5f52 [2022-07-13 03:28:50,909 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:28:50,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2022-07-13 03:28:50,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff6fc5e2/e9d0493f00f54282b2c5e83105e1feaa/FLAGf99da5f52 [2022-07-13 03:28:51,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff6fc5e2/e9d0493f00f54282b2c5e83105e1feaa [2022-07-13 03:28:51,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:28:51,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:28:51,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:28:51,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:28:51,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:28:51,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e2d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51, skipping insertion in model container [2022-07-13 03:28:51,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:28:51,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:28:51,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2022-07-13 03:28:51,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:28:51,538 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:28:51,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2022-07-13 03:28:51,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:28:51,579 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:28:51,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51 WrapperNode [2022-07-13 03:28:51,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:28:51,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:28:51,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:28:51,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:28:51,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,604 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2022-07-13 03:28:51,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:28:51,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:28:51,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:28:51,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:28:51,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:28:51,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:28:51,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:28:51,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:28:51,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (1/1) ... [2022-07-13 03:28:51,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:51,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:51,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:51,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:28:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:28:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:28:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:28:51,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:28:51,736 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:28:51,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:28:51,894 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:28:51,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:28:51,900 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:28:51,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:28:51 BoogieIcfgContainer [2022-07-13 03:28:51,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:28:51,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:28:51,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:28:51,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:28:51,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:28:51,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:28:51" (1/3) ... [2022-07-13 03:28:51,907 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@215a33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:28:51, skipping insertion in model container [2022-07-13 03:28:51,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:28:51,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:28:51" (2/3) ... [2022-07-13 03:28:51,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@215a33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:28:51, skipping insertion in model container [2022-07-13 03:28:51,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:28:51,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:28:51" (3/3) ... [2022-07-13 03:28:51,909 INFO L354 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2022-07-13 03:28:51,952 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:28:51,952 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:28:51,952 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:28:51,953 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:28:51,953 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:28:51,953 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:28:51,953 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:28:51,953 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:28:51,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:51,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-07-13 03:28:51,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:51,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:51,972 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:28:51,972 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:28:51,975 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:28:51,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:51,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-07-13 03:28:51,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:51,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:51,980 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:28:51,980 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:28:51,985 INFO L752 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 18#L188true [2022-07-13 03:28:51,985 INFO L754 eck$LassoCheckResult]: Loop: 18#L188true assume !false; 20#L35true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 33#L41true assume 8466 == main_~s__state~0#1; 30#L42true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 28#L90-1true main_~s__state~0#1 := 8496; 18#L188true [2022-07-13 03:28:51,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:28:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:51,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752426964] [2022-07-13 03:28:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:52,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,102 INFO L85 PathProgramCache]: Analyzing trace with hash 39285361, now seen corresponding path program 1 times [2022-07-13 03:28:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:52,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939099819] [2022-07-13 03:28:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,116 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724847, now seen corresponding path program 1 times [2022-07-13 03:28:52,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:52,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817765500] [2022-07-13 03:28:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:52,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:52,242 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:52,243 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:52,243 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:52,243 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:52,243 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:52,243 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,243 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:52,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:52,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2022-07-13 03:28:52,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:52,244 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:52,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:52,307 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:52,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:28:52,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:52,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:52,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-13 03:28:52,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:28:52,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:52,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:52,372 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:52,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:52,391 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:52,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:52,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:52,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:52,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:52,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:52,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:52,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2022-07-13 03:28:52,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:52,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:52,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,430 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:52,433 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:52,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:28:52,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:52,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:52,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:52,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:52,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:52,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:52,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:52,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:52,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:52,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:52,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:52,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,473 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:28:52,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:52,475 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:52,475 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:52,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -2*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2022-07-13 03:28:52,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:52,493 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:52,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:52,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:52,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:52,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:52,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:52,626 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:28:52,627 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:52,678 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 154 transitions. Complement of second has 5 states. [2022-07-13 03:28:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2022-07-13 03:28:52,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 5 letters. [2022-07-13 03:28:52,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:52,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 7 letters. Loop has 5 letters. [2022-07-13 03:28:52,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:52,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 10 letters. [2022-07-13 03:28:52,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:52,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 154 transitions. [2022-07-13 03:28:52,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-07-13 03:28:52,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 82 states and 129 transitions. [2022-07-13 03:28:52,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2022-07-13 03:28:52,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-07-13 03:28:52,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2022-07-13 03:28:52,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:52,705 INFO L369 hiAutomatonCegarLoop]: Abstraction has 82 states and 129 transitions. [2022-07-13 03:28:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2022-07-13 03:28:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-07-13 03:28:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2022-07-13 03:28:52,724 INFO L392 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions. [2022-07-13 03:28:52,724 INFO L374 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2022-07-13 03:28:52,724 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:28:52,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2022-07-13 03:28:52,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-07-13 03:28:52,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:52,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:52,727 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:28:52,727 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:28:52,727 INFO L752 eck$LassoCheckResult]: Stem: 244#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 219#L188 assume !false; 236#L35 [2022-07-13 03:28:52,727 INFO L754 eck$LassoCheckResult]: Loop: 236#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 240#L41 assume 8466 == main_~s__state~0#1; 257#L42 assume !(0 == main_~blastFlag~0#1); 253#L90-1 main_~s__state~0#1 := 8496; 188#L188 assume !false; 236#L35 [2022-07-13 03:28:52,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:28:52,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:52,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759726369] [2022-07-13 03:28:52,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:52,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,736 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,740 INFO L85 PathProgramCache]: Analyzing trace with hash 44052933, now seen corresponding path program 1 times [2022-07-13 03:28:52,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:52,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266665831] [2022-07-13 03:28:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:52,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:52,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:52,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash 297897342, now seen corresponding path program 1 times [2022-07-13 03:28:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:52,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072294643] [2022-07-13 03:28:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:52,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:52,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072294643] [2022-07-13 03:28:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072294643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:52,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:52,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247170689] [2022-07-13 03:28:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:52,805 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:52,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:52,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:52,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:52,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:52,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:52,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:52,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2022-07-13 03:28:52,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:52,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:52,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:52,842 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:52,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:28:52,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:52,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:52,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:52,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:28:52,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:52,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:52,902 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:52,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-13 03:28:52,920 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:52,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:52,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:52,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:52,920 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:52,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:52,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:52,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2022-07-13 03:28:52,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:52,921 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:52,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:52,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:52,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:52,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:52,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:52,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:52,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:28:52,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:52,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:52,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:52,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:52,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:52,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:52,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:52,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:53,009 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:53,011 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:53,011 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:53,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:28:53,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:53,026 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:53,026 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:53,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8481 Supporting invariants [] [2022-07-13 03:28:53,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,046 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:53,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:53,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:53,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:53,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:53,102 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:53,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,213 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 49. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 236 states and 345 transitions. Complement of second has 7 states. [2022-07-13 03:28:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2022-07-13 03:28:53,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 3 letters. Loop has 5 letters. [2022-07-13 03:28:53,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 8 letters. Loop has 5 letters. [2022-07-13 03:28:53,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 3 letters. Loop has 10 letters. [2022-07-13 03:28:53,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 345 transitions. [2022-07-13 03:28:53,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-07-13 03:28:53,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 165 states and 261 transitions. [2022-07-13 03:28:53,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2022-07-13 03:28:53,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2022-07-13 03:28:53,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 261 transitions. [2022-07-13 03:28:53,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:53,221 INFO L369 hiAutomatonCegarLoop]: Abstraction has 165 states and 261 transitions. [2022-07-13 03:28:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 261 transitions. [2022-07-13 03:28:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 98. [2022-07-13 03:28:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.5510204081632653) internal successors, (152), 97 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 152 transitions. [2022-07-13 03:28:53,228 INFO L392 hiAutomatonCegarLoop]: Abstraction has 98 states and 152 transitions. [2022-07-13 03:28:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:53,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:53,231 INFO L87 Difference]: Start difference. First operand 98 states and 152 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:53,252 INFO L93 Difference]: Finished difference Result 178 states and 266 transitions. [2022-07-13 03:28:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:53,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 266 transitions. [2022-07-13 03:28:53,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-07-13 03:28:53,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 175 states and 263 transitions. [2022-07-13 03:28:53,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2022-07-13 03:28:53,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2022-07-13 03:28:53,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 263 transitions. [2022-07-13 03:28:53,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:53,256 INFO L369 hiAutomatonCegarLoop]: Abstraction has 175 states and 263 transitions. [2022-07-13 03:28:53,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 263 transitions. [2022-07-13 03:28:53,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-07-13 03:28:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.5086705202312138) internal successors, (261), 172 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 261 transitions. [2022-07-13 03:28:53,264 INFO L392 hiAutomatonCegarLoop]: Abstraction has 173 states and 261 transitions. [2022-07-13 03:28:53,264 INFO L374 stractBuchiCegarLoop]: Abstraction has 173 states and 261 transitions. [2022-07-13 03:28:53,264 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:28:53,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 261 transitions. [2022-07-13 03:28:53,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-07-13 03:28:53,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:53,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:53,265 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:28:53,265 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:28:53,266 INFO L752 eck$LassoCheckResult]: Stem: 895#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 859#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 860#L188 assume !false; 879#L35 [2022-07-13 03:28:53,266 INFO L754 eck$LassoCheckResult]: Loop: 879#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 887#L41 assume !(8466 == main_~s__state~0#1); 837#L44 assume 8496 == main_~s__state~0#1; 838#L45 assume !(1 == main_~blastFlag~0#1); 891#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 831#L188 assume !false; 879#L35 [2022-07-13 03:28:53,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:53,266 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2022-07-13 03:28:53,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:53,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43977902] [2022-07-13 03:28:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:53,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:53,270 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:53,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:53,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1365768499, now seen corresponding path program 1 times [2022-07-13 03:28:53,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:53,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193861648] [2022-07-13 03:28:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:53,288 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:53,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 645010586, now seen corresponding path program 1 times [2022-07-13 03:28:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287327726] [2022-07-13 03:28:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:53,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287327726] [2022-07-13 03:28:53,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287327726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:53,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:53,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:53,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200349394] [2022-07-13 03:28:53,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:53,330 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:53,331 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:53,331 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:53,331 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:53,331 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:53,331 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:53,331 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:53,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2022-07-13 03:28:53,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:53,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:53,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,384 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:53,385 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:53,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:28:53,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:53,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:53,440 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:28:53,440 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:28:53,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-13 03:28:53,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,456 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:28:53,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:53,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:53,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:28:53,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:53,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:53,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:53,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,525 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:53,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:53,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:53,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:53,526 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:53,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:53,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:53,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2022-07-13 03:28:53,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:53,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:53,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:53,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:53,595 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:53,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:53,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:53,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:53,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:53,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:53,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:53,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:53,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:53,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:28:53,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:28:53,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,727 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:28:53,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:53,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:53,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:53,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:53,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:53,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:53,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:53,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:53,752 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:53,755 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:53,755 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:53,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:53,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:53,757 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:53,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:28:53,760 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:53,760 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:53,760 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:53,760 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8504 Supporting invariants [] [2022-07-13 03:28:53,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:53,777 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:53,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:53,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:53,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:53,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:53,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:53,848 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:53,850 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 173 states and 261 transitions. cyclomatic complexity: 94 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 173 states and 261 transitions. cyclomatic complexity: 94. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 574 states and 822 transitions. Complement of second has 7 states. [2022-07-13 03:28:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2022-07-13 03:28:53,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 6 letters. [2022-07-13 03:28:53,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 9 letters. Loop has 6 letters. [2022-07-13 03:28:53,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 12 letters. [2022-07-13 03:28:53,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:53,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 822 transitions. [2022-07-13 03:28:54,003 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 79 [2022-07-13 03:28:54,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 406 states and 614 transitions. [2022-07-13 03:28:54,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2022-07-13 03:28:54,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2022-07-13 03:28:54,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 406 states and 614 transitions. [2022-07-13 03:28:54,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:54,009 INFO L369 hiAutomatonCegarLoop]: Abstraction has 406 states and 614 transitions. [2022-07-13 03:28:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states and 614 transitions. [2022-07-13 03:28:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 238. [2022-07-13 03:28:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 238 states have (on average 1.4789915966386555) internal successors, (352), 237 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 352 transitions. [2022-07-13 03:28:54,033 INFO L392 hiAutomatonCegarLoop]: Abstraction has 238 states and 352 transitions. [2022-07-13 03:28:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:54,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:54,034 INFO L87 Difference]: Start difference. First operand 238 states and 352 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:54,073 INFO L93 Difference]: Finished difference Result 153 states and 222 transitions. [2022-07-13 03:28:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:54,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 222 transitions. [2022-07-13 03:28:54,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2022-07-13 03:28:54,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 148 states and 217 transitions. [2022-07-13 03:28:54,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2022-07-13 03:28:54,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-07-13 03:28:54,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 217 transitions. [2022-07-13 03:28:54,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:54,078 INFO L369 hiAutomatonCegarLoop]: Abstraction has 148 states and 217 transitions. [2022-07-13 03:28:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 217 transitions. [2022-07-13 03:28:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-07-13 03:28:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.4662162162162162) internal successors, (217), 147 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 217 transitions. [2022-07-13 03:28:54,081 INFO L392 hiAutomatonCegarLoop]: Abstraction has 148 states and 217 transitions. [2022-07-13 03:28:54,081 INFO L374 stractBuchiCegarLoop]: Abstraction has 148 states and 217 transitions. [2022-07-13 03:28:54,082 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:28:54,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 217 transitions. [2022-07-13 03:28:54,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2022-07-13 03:28:54,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:54,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:54,083 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:54,083 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:28:54,083 INFO L752 eck$LassoCheckResult]: Stem: 2084#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2051#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2052#L188 assume !false; 2071#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2159#L41 assume 8466 == main_~s__state~0#1; 2156#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 2155#L90-1 main_~s__state~0#1 := 8496; 2153#L188 assume !false; 2074#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2129#L41 assume !(8466 == main_~s__state~0#1); 2128#L44 assume !(8496 == main_~s__state~0#1); 2028#L48 [2022-07-13 03:28:54,084 INFO L754 eck$LassoCheckResult]: Loop: 2028#L48 assume 8512 == main_~s__state~0#1; 2063#L49 main_~s__state~0#1 := 8528; 2023#L188 assume !false; 2112#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2110#L41 assume !(8466 == main_~s__state~0#1); 2109#L44 assume !(8496 == main_~s__state~0#1); 2028#L48 [2022-07-13 03:28:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1200039737, now seen corresponding path program 1 times [2022-07-13 03:28:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:54,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265794938] [2022-07-13 03:28:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:54,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265794938] [2022-07-13 03:28:54,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265794938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:28:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141168011] [2022-07-13 03:28:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:54,101 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1809521393, now seen corresponding path program 1 times [2022-07-13 03:28:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971717798] [2022-07-13 03:28:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:54,105 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:54,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:54,121 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:54,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:54,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:54,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:54,121 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:54,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:54,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:54,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2022-07-13 03:28:54,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:54,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:54,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:54,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:54,137 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:54,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,144 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:28:54,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:54,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:54,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-13 03:28:54,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,174 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:28:54,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:54,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:54,198 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:54,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-13 03:28:54,216 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:54,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:54,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:54,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:54,216 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:54,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:54,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:54,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2022-07-13 03:28:54,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:54,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:54,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:54,230 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:54,230 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:54,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,240 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:28:54,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:54,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:54,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:54,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:54,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:54,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:54,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:54,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:54,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:54,280 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:54,280 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:54,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,295 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:28:54,301 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:54,301 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:54,301 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:54,301 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8520 Supporting invariants [] [2022-07-13 03:28:54,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,320 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:54,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:54,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:54,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:54,389 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:54,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 148 states and 217 transitions. cyclomatic complexity: 77 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 148 states and 217 transitions. cyclomatic complexity: 77. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 460 states and 687 transitions. Complement of second has 9 states. [2022-07-13 03:28:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2022-07-13 03:28:54,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 11 letters. Loop has 6 letters. [2022-07-13 03:28:54,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:54,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 17 letters. Loop has 6 letters. [2022-07-13 03:28:54,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:54,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 11 letters. Loop has 12 letters. [2022-07-13 03:28:54,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:54,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 460 states and 687 transitions. [2022-07-13 03:28:54,515 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 62 [2022-07-13 03:28:54,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 460 states to 361 states and 555 transitions. [2022-07-13 03:28:54,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2022-07-13 03:28:54,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2022-07-13 03:28:54,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 361 states and 555 transitions. [2022-07-13 03:28:54,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:54,517 INFO L369 hiAutomatonCegarLoop]: Abstraction has 361 states and 555 transitions. [2022-07-13 03:28:54,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states and 555 transitions. [2022-07-13 03:28:54,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 206. [2022-07-13 03:28:54,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.4757281553398058) internal successors, (304), 205 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 304 transitions. [2022-07-13 03:28:54,521 INFO L392 hiAutomatonCegarLoop]: Abstraction has 206 states and 304 transitions. [2022-07-13 03:28:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:54,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:54,521 INFO L87 Difference]: Start difference. First operand 206 states and 304 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:54,560 INFO L93 Difference]: Finished difference Result 225 states and 313 transitions. [2022-07-13 03:28:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:54,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 313 transitions. [2022-07-13 03:28:54,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-07-13 03:28:54,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 210 states and 296 transitions. [2022-07-13 03:28:54,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2022-07-13 03:28:54,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2022-07-13 03:28:54,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 296 transitions. [2022-07-13 03:28:54,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:54,563 INFO L369 hiAutomatonCegarLoop]: Abstraction has 210 states and 296 transitions. [2022-07-13 03:28:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 296 transitions. [2022-07-13 03:28:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 199. [2022-07-13 03:28:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.4271356783919598) internal successors, (284), 198 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:54,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 284 transitions. [2022-07-13 03:28:54,566 INFO L392 hiAutomatonCegarLoop]: Abstraction has 199 states and 284 transitions. [2022-07-13 03:28:54,566 INFO L374 stractBuchiCegarLoop]: Abstraction has 199 states and 284 transitions. [2022-07-13 03:28:54,566 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:28:54,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 284 transitions. [2022-07-13 03:28:54,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2022-07-13 03:28:54,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:54,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:54,567 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:54,567 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:54,567 INFO L752 eck$LassoCheckResult]: Stem: 3203#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3170#L188 assume !false; 3331#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3223#L41 assume 8466 == main_~s__state~0#1; 3224#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 3333#L90-1 main_~s__state~0#1 := 8496; 3193#L188 assume !false; 3194#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3198#L41 assume !(8466 == main_~s__state~0#1); 3271#L44 assume 8496 == main_~s__state~0#1; 3270#L45 assume !(1 == main_~blastFlag~0#1); 3269#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 3267#L188 assume !false; 3266#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3265#L41 assume !(8466 == main_~s__state~0#1); 3145#L44 assume !(8496 == main_~s__state~0#1); 3146#L48 assume !(8512 == main_~s__state~0#1); 3190#L52 [2022-07-13 03:28:54,567 INFO L754 eck$LassoCheckResult]: Loop: 3190#L52 assume 8528 == main_~s__state~0#1; 3229#L53 main_~s__state~0#1 := 8544; 3141#L188 assume !false; 3251#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3248#L41 assume !(8466 == main_~s__state~0#1); 3246#L44 assume !(8496 == main_~s__state~0#1); 3243#L48 assume !(8512 == main_~s__state~0#1); 3190#L52 [2022-07-13 03:28:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1540003514, now seen corresponding path program 1 times [2022-07-13 03:28:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:54,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669344303] [2022-07-13 03:28:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:54,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:54,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:54,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669344303] [2022-07-13 03:28:54,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669344303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:54,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:54,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:54,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889092567] [2022-07-13 03:28:54,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:54,581 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:54,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash 460397777, now seen corresponding path program 1 times [2022-07-13 03:28:54,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:54,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757202534] [2022-07-13 03:28:54,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:54,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:54,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:54,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:54,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,659 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:54,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:54,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:54,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:54,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:54,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:54,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:54,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2022-07-13 03:28:54,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:54,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:54,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:54,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:54,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:54,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,692 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:28:54,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:54,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:54,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,768 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:28:54,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:54,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:54,793 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:54,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,822 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:54,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:54,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:54,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:54,823 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:54,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:54,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:54,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2022-07-13 03:28:54,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:54,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:54,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:54,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:54,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:54,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,872 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:28:54,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:54,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:54,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:54,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:54,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:54,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:54,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:54,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:54,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:54,898 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:54,898 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:54,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:54,901 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:54,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:28:54,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:54,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:54,903 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:54,903 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8536 Supporting invariants [] [2022-07-13 03:28:54,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:54,926 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:54,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:54,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:54,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:55,007 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:55,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 199 states and 284 transitions. cyclomatic complexity: 93 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,136 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 199 states and 284 transitions. cyclomatic complexity: 93. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 529 states and 778 transitions. Complement of second has 9 states. [2022-07-13 03:28:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2022-07-13 03:28:55,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 18 letters. Loop has 7 letters. [2022-07-13 03:28:55,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 25 letters. Loop has 7 letters. [2022-07-13 03:28:55,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 18 letters. Loop has 14 letters. [2022-07-13 03:28:55,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 529 states and 778 transitions. [2022-07-13 03:28:55,141 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2022-07-13 03:28:55,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 529 states to 438 states and 654 transitions. [2022-07-13 03:28:55,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-07-13 03:28:55,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2022-07-13 03:28:55,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 438 states and 654 transitions. [2022-07-13 03:28:55,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:55,144 INFO L369 hiAutomatonCegarLoop]: Abstraction has 438 states and 654 transitions. [2022-07-13 03:28:55,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states and 654 transitions. [2022-07-13 03:28:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 285. [2022-07-13 03:28:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.4280701754385965) internal successors, (407), 284 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 407 transitions. [2022-07-13 03:28:55,148 INFO L392 hiAutomatonCegarLoop]: Abstraction has 285 states and 407 transitions. [2022-07-13 03:28:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:55,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:55,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:55,149 INFO L87 Difference]: Start difference. First operand 285 states and 407 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:55,159 INFO L93 Difference]: Finished difference Result 342 states and 464 transitions. [2022-07-13 03:28:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:55,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 464 transitions. [2022-07-13 03:28:55,161 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2022-07-13 03:28:55,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 464 transitions. [2022-07-13 03:28:55,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2022-07-13 03:28:55,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2022-07-13 03:28:55,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 464 transitions. [2022-07-13 03:28:55,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:55,163 INFO L369 hiAutomatonCegarLoop]: Abstraction has 342 states and 464 transitions. [2022-07-13 03:28:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 464 transitions. [2022-07-13 03:28:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-13 03:28:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.3567251461988303) internal successors, (464), 341 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 464 transitions. [2022-07-13 03:28:55,167 INFO L392 hiAutomatonCegarLoop]: Abstraction has 342 states and 464 transitions. [2022-07-13 03:28:55,167 INFO L374 stractBuchiCegarLoop]: Abstraction has 342 states and 464 transitions. [2022-07-13 03:28:55,167 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:28:55,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 464 transitions. [2022-07-13 03:28:55,169 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2022-07-13 03:28:55,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:55,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:55,169 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:55,169 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:55,169 INFO L752 eck$LassoCheckResult]: Stem: 4662#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 4627#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 4628#L188 assume !false; 4649#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4680#L41 assume 8466 == main_~s__state~0#1; 4681#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 4853#L90-1 main_~s__state~0#1 := 8496; 4851#L188 assume !false; 4849#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4847#L41 assume !(8466 == main_~s__state~0#1); 4843#L44 assume 8496 == main_~s__state~0#1; 4838#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 4837#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 4834#L188 assume !false; 4832#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4829#L41 assume !(8466 == main_~s__state~0#1); 4826#L44 assume !(8496 == main_~s__state~0#1); 4827#L48 assume !(8512 == main_~s__state~0#1); 4653#L52 assume !(8528 == main_~s__state~0#1); 4609#L56 [2022-07-13 03:28:55,170 INFO L754 eck$LassoCheckResult]: Loop: 4609#L56 assume 8544 == main_~s__state~0#1; 4610#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 4599#L188 assume !false; 4701#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4699#L41 assume !(8466 == main_~s__state~0#1); 4697#L44 assume !(8496 == main_~s__state~0#1); 4695#L48 assume !(8512 == main_~s__state~0#1); 4694#L52 assume !(8528 == main_~s__state~0#1); 4609#L56 [2022-07-13 03:28:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1304815340, now seen corresponding path program 1 times [2022-07-13 03:28:55,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820784774] [2022-07-13 03:28:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:55,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1040610643, now seen corresponding path program 1 times [2022-07-13 03:28:55,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241585341] [2022-07-13 03:28:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:55,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,186 INFO L85 PathProgramCache]: Analyzing trace with hash 290150040, now seen corresponding path program 1 times [2022-07-13 03:28:55,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597201322] [2022-07-13 03:28:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:28:55,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:55,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597201322] [2022-07-13 03:28:55,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597201322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:55,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:55,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:55,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188142191] [2022-07-13 03:28:55,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:55,227 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:55,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:55,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:55,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:55,227 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:55,227 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:55,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:55,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2022-07-13 03:28:55,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:55,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:55,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:55,247 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:55,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,249 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:28:55,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:55,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:55,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-13 03:28:55,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,283 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:28:55,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:55,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:55,292 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:55,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-13 03:28:55,307 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:55,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:55,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:55,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:55,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:55,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:55,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:55,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2022-07-13 03:28:55,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:55,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:55,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,339 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:55,339 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:55,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,341 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:28:55,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:55,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:55,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:55,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:55,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:55,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:55,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:55,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:55,351 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:55,354 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:55,354 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:55,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,355 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:28:55,357 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:55,357 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:55,357 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:55,357 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8552 Supporting invariants [] [2022-07-13 03:28:55,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:55,372 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:55,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:55,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:55,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:55,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:55,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:55,457 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:55,458 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 342 states and 464 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,568 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 342 states and 464 transitions. cyclomatic complexity: 134. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 692 states and 980 transitions. Complement of second has 9 states. [2022-07-13 03:28:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2022-07-13 03:28:55,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 19 letters. Loop has 8 letters. [2022-07-13 03:28:55,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 27 letters. Loop has 8 letters. [2022-07-13 03:28:55,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 19 letters. Loop has 16 letters. [2022-07-13 03:28:55,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:55,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 980 transitions. [2022-07-13 03:28:55,573 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2022-07-13 03:28:55,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 609 states and 865 transitions. [2022-07-13 03:28:55,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2022-07-13 03:28:55,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2022-07-13 03:28:55,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 609 states and 865 transitions. [2022-07-13 03:28:55,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:55,576 INFO L369 hiAutomatonCegarLoop]: Abstraction has 609 states and 865 transitions. [2022-07-13 03:28:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states and 865 transitions. [2022-07-13 03:28:55,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 469. [2022-07-13 03:28:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 469 states have (on average 1.3773987206823028) internal successors, (646), 468 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 646 transitions. [2022-07-13 03:28:55,604 INFO L392 hiAutomatonCegarLoop]: Abstraction has 469 states and 646 transitions. [2022-07-13 03:28:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:55,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:55,605 INFO L87 Difference]: Start difference. First operand 469 states and 646 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:55,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:55,667 INFO L93 Difference]: Finished difference Result 583 states and 762 transitions. [2022-07-13 03:28:55,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:55,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 762 transitions. [2022-07-13 03:28:55,670 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 100 [2022-07-13 03:28:55,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 547 states and 726 transitions. [2022-07-13 03:28:55,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2022-07-13 03:28:55,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-07-13 03:28:55,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 547 states and 726 transitions. [2022-07-13 03:28:55,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:55,674 INFO L369 hiAutomatonCegarLoop]: Abstraction has 547 states and 726 transitions. [2022-07-13 03:28:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states and 726 transitions. [2022-07-13 03:28:55,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 493. [2022-07-13 03:28:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.359026369168357) internal successors, (670), 492 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 670 transitions. [2022-07-13 03:28:55,681 INFO L392 hiAutomatonCegarLoop]: Abstraction has 493 states and 670 transitions. [2022-07-13 03:28:55,681 INFO L374 stractBuchiCegarLoop]: Abstraction has 493 states and 670 transitions. [2022-07-13 03:28:55,682 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:28:55,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 670 transitions. [2022-07-13 03:28:55,684 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2022-07-13 03:28:55,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:55,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:55,684 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:55,684 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:55,685 INFO L752 eck$LassoCheckResult]: Stem: 6857#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 6823#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6824#L188 assume !false; 7173#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 7172#L41 assume 8466 == main_~s__state~0#1; 7171#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 7169#L90-1 main_~s__state~0#1 := 8496; 7168#L188 assume !false; 7166#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 7164#L41 assume !(8466 == main_~s__state~0#1); 7162#L44 assume 8496 == main_~s__state~0#1; 7153#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 7149#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 6845#L188 [2022-07-13 03:28:55,685 INFO L754 eck$LassoCheckResult]: Loop: 6845#L188 assume !false; 6846#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 6851#L41 assume !(8466 == main_~s__state~0#1); 6800#L44 assume !(8496 == main_~s__state~0#1); 6801#L48 assume !(8512 == main_~s__state~0#1); 6849#L52 assume !(8528 == main_~s__state~0#1); 6807#L56 assume !(8544 == main_~s__state~0#1); 6808#L60 assume !(8560 == main_~s__state~0#1); 6858#L64 assume !(8576 == main_~s__state~0#1); 6859#L68 assume !(8592 == main_~s__state~0#1); 6868#L72 assume !(8608 == main_~s__state~0#1); 6880#L76 assume !(8640 == main_~s__state~0#1); 6829#L80 assume 8656 == main_~s__state~0#1; 6830#L81 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 6862#L174-1 main_~s__state~0#1 := 8672; 6845#L188 [2022-07-13 03:28:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2108014467, now seen corresponding path program 1 times [2022-07-13 03:28:55,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291836529] [2022-07-13 03:28:55,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:55,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,701 INFO L85 PathProgramCache]: Analyzing trace with hash -318790614, now seen corresponding path program 1 times [2022-07-13 03:28:55,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660945494] [2022-07-13 03:28:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,704 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:55,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,706 INFO L85 PathProgramCache]: Analyzing trace with hash -444277714, now seen corresponding path program 1 times [2022-07-13 03:28:55,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:55,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628673166] [2022-07-13 03:28:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,711 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:55,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:55,742 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:55,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:55,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:55,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:55,742 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:55,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:55,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:55,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2022-07-13 03:28:55,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:55,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:55,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:55,767 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:55,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,776 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:28:55,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:55,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:55,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:55,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,818 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:28:55,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:55,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:55,842 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:55,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 03:28:55,857 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:55,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:55,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:55,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:55,857 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:55,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:55,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:55,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2022-07-13 03:28:55,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:55,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:55,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:55,883 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:55,883 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,885 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:28:55,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:55,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:55,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:55,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:55,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:55,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:55,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:55,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:55,907 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:55,909 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:55,909 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:55,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:55,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:55,910 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:55,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 03:28:55,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:55,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:55,912 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:55,912 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -2*ULTIMATE.start_main_~blastFlag~0#1 + 5 Supporting invariants [] [2022-07-13 03:28:55,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-13 03:28:55,928 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:55,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:55,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:55,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:55,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:56,007 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:28:56,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 493 states and 670 transitions. cyclomatic complexity: 193 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,024 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 493 states and 670 transitions. cyclomatic complexity: 193. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 751 states and 1024 transitions. Complement of second has 4 states. [2022-07-13 03:28:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2022-07-13 03:28:56,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 13 letters. Loop has 15 letters. [2022-07-13 03:28:56,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 28 letters. Loop has 15 letters. [2022-07-13 03:28:56,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 13 letters. Loop has 30 letters. [2022-07-13 03:28:56,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 1024 transitions. [2022-07-13 03:28:56,029 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2022-07-13 03:28:56,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 684 states and 933 transitions. [2022-07-13 03:28:56,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2022-07-13 03:28:56,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2022-07-13 03:28:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 684 states and 933 transitions. [2022-07-13 03:28:56,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:56,031 INFO L369 hiAutomatonCegarLoop]: Abstraction has 684 states and 933 transitions. [2022-07-13 03:28:56,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states and 933 transitions. [2022-07-13 03:28:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 678. [2022-07-13 03:28:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 678 states have (on average 1.3657817109144543) internal successors, (926), 677 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 926 transitions. [2022-07-13 03:28:56,038 INFO L392 hiAutomatonCegarLoop]: Abstraction has 678 states and 926 transitions. [2022-07-13 03:28:56,038 INFO L374 stractBuchiCegarLoop]: Abstraction has 678 states and 926 transitions. [2022-07-13 03:28:56,038 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:28:56,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 678 states and 926 transitions. [2022-07-13 03:28:56,040 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2022-07-13 03:28:56,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:56,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:56,040 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,040 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,041 INFO L752 eck$LassoCheckResult]: Stem: 8214#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 8170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 8171#L188 assume !false; 8474#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8460#L41 assume 8466 == main_~s__state~0#1; 8459#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 8457#L90-1 main_~s__state~0#1 := 8496; 8456#L188 assume !false; 8455#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8454#L41 assume !(8466 == main_~s__state~0#1); 8443#L44 assume 8496 == main_~s__state~0#1; 8437#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 8435#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 8278#L188 assume !false; 8525#L35 [2022-07-13 03:28:56,041 INFO L754 eck$LassoCheckResult]: Loop: 8525#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8523#L41 assume !(8466 == main_~s__state~0#1); 8479#L44 assume !(8496 == main_~s__state~0#1); 8477#L48 assume !(8512 == main_~s__state~0#1); 8475#L52 assume !(8528 == main_~s__state~0#1); 8476#L56 assume !(8544 == main_~s__state~0#1); 8514#L60 assume !(8560 == main_~s__state~0#1); 8512#L64 assume !(8576 == main_~s__state~0#1); 8511#L68 assume !(8592 == main_~s__state~0#1); 8510#L72 assume !(8608 == main_~s__state~0#1); 8471#L76 assume !(8640 == main_~s__state~0#1); 8468#L80 assume 8656 == main_~s__state~0#1; 8219#L81 assume !(2 == main_~blastFlag~0#1); 8220#L174-1 main_~s__state~0#1 := 8672; 8212#L188 assume !false; 8525#L35 [2022-07-13 03:28:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 2 times [2022-07-13 03:28:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215813076] [2022-07-13 03:28:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1835507732, now seen corresponding path program 1 times [2022-07-13 03:28:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628721392] [2022-07-13 03:28:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,068 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash -887705313, now seen corresponding path program 1 times [2022-07-13 03:28:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658921759] [2022-07-13 03:28:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:28:56,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:56,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658921759] [2022-07-13 03:28:56,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658921759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:56,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:56,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:56,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378718241] [2022-07-13 03:28:56,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:56,119 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:56,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:56,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:56,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:56,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:56,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:56,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:56,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration8_Loop [2022-07-13 03:28:56,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:56,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:56,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:56,137 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:56,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,139 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:56,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 03:28:56,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:28:56,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=3} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:28:56,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,196 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-13 03:28:56,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:56,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,237 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-13 03:28:56,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:56,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,267 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:56,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,282 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:56,283 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:56,283 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:56,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:56,283 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:56,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:56,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:56,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration8_Loop [2022-07-13 03:28:56,283 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:56,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:56,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:56,299 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:56,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,301 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-13 03:28:56,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:56,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:56,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:56,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:56,308 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:28:56,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:56,309 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:28:56,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:56,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:28:56,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-07-13 03:28:56,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,335 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-13 03:28:56,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:56,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:56,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:56,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:56,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:56,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:56,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:56,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:56,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:56,364 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:56,364 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:56,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,365 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-13 03:28:56,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:56,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:56,368 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:56,368 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8664 Supporting invariants [] [2022-07-13 03:28:56,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,386 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:56,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:56,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:56,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:56,442 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:56,442 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 678 states and 926 transitions. cyclomatic complexity: 267 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 678 states and 926 transitions. cyclomatic complexity: 267. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1562 states and 2071 transitions. Complement of second has 9 states. [2022-07-13 03:28:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:56,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2022-07-13 03:28:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 14 letters. Loop has 15 letters. [2022-07-13 03:28:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 29 letters. Loop has 15 letters. [2022-07-13 03:28:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 14 letters. Loop has 30 letters. [2022-07-13 03:28:56,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:56,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1562 states and 2071 transitions. [2022-07-13 03:28:56,574 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2022-07-13 03:28:56,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1562 states to 1337 states and 1769 transitions. [2022-07-13 03:28:56,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 280 [2022-07-13 03:28:56,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2022-07-13 03:28:56,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1337 states and 1769 transitions. [2022-07-13 03:28:56,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:56,578 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1337 states and 1769 transitions. [2022-07-13 03:28:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states and 1769 transitions. [2022-07-13 03:28:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1292. [2022-07-13 03:28:56,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1292 states have (on average 1.3212074303405572) internal successors, (1707), 1291 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1707 transitions. [2022-07-13 03:28:56,591 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1292 states and 1707 transitions. [2022-07-13 03:28:56,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:56,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:56,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:56,592 INFO L87 Difference]: Start difference. First operand 1292 states and 1707 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:56,608 INFO L93 Difference]: Finished difference Result 1457 states and 1909 transitions. [2022-07-13 03:28:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:56,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1457 states and 1909 transitions. [2022-07-13 03:28:56,614 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 301 [2022-07-13 03:28:56,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1457 states to 1274 states and 1665 transitions. [2022-07-13 03:28:56,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2022-07-13 03:28:56,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 374 [2022-07-13 03:28:56,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1274 states and 1665 transitions. [2022-07-13 03:28:56,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:56,618 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1274 states and 1665 transitions. [2022-07-13 03:28:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states and 1665 transitions. [2022-07-13 03:28:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1262. [2022-07-13 03:28:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1262 states have (on average 1.309825673534073) internal successors, (1653), 1261 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1653 transitions. [2022-07-13 03:28:56,630 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1262 states and 1653 transitions. [2022-07-13 03:28:56,630 INFO L374 stractBuchiCegarLoop]: Abstraction has 1262 states and 1653 transitions. [2022-07-13 03:28:56,630 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-13 03:28:56,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1262 states and 1653 transitions. [2022-07-13 03:28:56,633 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 301 [2022-07-13 03:28:56,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:56,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:56,634 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,634 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,634 INFO L752 eck$LassoCheckResult]: Stem: 13316#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 13275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 13276#L188 assume !false; 13796#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13797#L41 assume 8466 == main_~s__state~0#1; 14132#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 14129#L90-1 main_~s__state~0#1 := 8496; 13300#L188 assume !false; 13301#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 14498#L41 assume !(8466 == main_~s__state~0#1); 14497#L44 assume 8496 == main_~s__state~0#1; 14496#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 13345#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 13891#L188 assume !false; 13304#L35 [2022-07-13 03:28:56,634 INFO L754 eck$LassoCheckResult]: Loop: 13304#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13305#L41 assume !(8466 == main_~s__state~0#1); 13254#L44 assume !(8496 == main_~s__state~0#1); 13255#L48 assume !(8512 == main_~s__state~0#1); 13339#L52 assume !(8528 == main_~s__state~0#1); 13260#L56 assume !(8544 == main_~s__state~0#1); 13261#L60 assume !(8560 == main_~s__state~0#1); 13317#L64 assume !(8576 == main_~s__state~0#1); 13318#L68 assume !(8592 == main_~s__state~0#1); 13328#L72 assume !(8608 == main_~s__state~0#1); 13351#L76 assume !(8640 == main_~s__state~0#1); 13359#L80 assume !(8656 == main_~s__state~0#1); 13574#L84 assume 8672 == main_~s__state~0#1; 13572#L85 assume !(4 == main_~blastFlag~0#1); 13570#L184 assume !(5 == main_~blastFlag~0#1); 13346#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 13347#L188 assume !false; 13590#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13588#L41 assume !(8466 == main_~s__state~0#1); 13586#L44 assume 8496 == main_~s__state~0#1; 13587#L45 assume !(1 == main_~blastFlag~0#1); 13591#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 13313#L188 assume !false; 13304#L35 [2022-07-13 03:28:56,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 3 times [2022-07-13 03:28:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758619832] [2022-07-13 03:28:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,638 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1607513209, now seen corresponding path program 1 times [2022-07-13 03:28:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959600394] [2022-07-13 03:28:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:56,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:56,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959600394] [2022-07-13 03:28:56,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959600394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:56,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:56,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:56,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806186777] [2022-07-13 03:28:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:56,651 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:28:56,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:56,652 INFO L87 Difference]: Start difference. First operand 1262 states and 1653 transitions. cyclomatic complexity: 420 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:56,689 INFO L93 Difference]: Finished difference Result 1036 states and 1257 transitions. [2022-07-13 03:28:56,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:56,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1036 states and 1257 transitions. [2022-07-13 03:28:56,693 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 202 [2022-07-13 03:28:56,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1036 states to 654 states and 800 transitions. [2022-07-13 03:28:56,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2022-07-13 03:28:56,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2022-07-13 03:28:56,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 654 states and 800 transitions. [2022-07-13 03:28:56,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:56,695 INFO L369 hiAutomatonCegarLoop]: Abstraction has 654 states and 800 transitions. [2022-07-13 03:28:56,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states and 800 transitions. [2022-07-13 03:28:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 651. [2022-07-13 03:28:56,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 651 states have (on average 1.2211981566820276) internal successors, (795), 650 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 795 transitions. [2022-07-13 03:28:56,702 INFO L392 hiAutomatonCegarLoop]: Abstraction has 651 states and 795 transitions. [2022-07-13 03:28:56,702 INFO L374 stractBuchiCegarLoop]: Abstraction has 651 states and 795 transitions. [2022-07-13 03:28:56,702 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-13 03:28:56,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 651 states and 795 transitions. [2022-07-13 03:28:56,704 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 202 [2022-07-13 03:28:56,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:56,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:56,704 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,704 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,704 INFO L752 eck$LassoCheckResult]: Stem: 15621#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 15578#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 15579#L188 assume !false; 15874#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 15871#L41 assume 8466 == main_~s__state~0#1; 15869#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 15630#L90-1 main_~s__state~0#1 := 8496; 15600#L188 assume !false; 15601#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16161#L41 assume !(8466 == main_~s__state~0#1); 16159#L44 assume 8496 == main_~s__state~0#1; 16157#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 16156#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 15614#L188 assume !false; 16039#L35 [2022-07-13 03:28:56,705 INFO L754 eck$LassoCheckResult]: Loop: 16039#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16038#L41 assume !(8466 == main_~s__state~0#1); 16037#L44 assume !(8496 == main_~s__state~0#1); 16036#L48 assume !(8512 == main_~s__state~0#1); 16012#L52 assume !(8528 == main_~s__state~0#1); 16011#L56 assume !(8544 == main_~s__state~0#1); 16009#L60 assume !(8560 == main_~s__state~0#1); 16006#L64 assume !(8576 == main_~s__state~0#1); 16007#L68 assume !(8592 == main_~s__state~0#1); 16017#L72 assume !(8608 == main_~s__state~0#1); 15985#L76 assume !(8640 == main_~s__state~0#1); 15984#L80 assume !(8656 == main_~s__state~0#1); 15615#L84 assume 8672 == main_~s__state~0#1; 15568#L85 assume !(4 == main_~blastFlag~0#1); 15569#L184 assume !(5 == main_~blastFlag~0#1); 15598#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 15648#L188 assume !false; 16035#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16034#L41 assume !(8466 == main_~s__state~0#1); 16033#L44 assume !(8496 == main_~s__state~0#1); 16031#L48 assume !(8512 == main_~s__state~0#1); 16029#L52 assume !(8528 == main_~s__state~0#1); 16027#L56 assume !(8544 == main_~s__state~0#1); 16025#L60 assume !(8560 == main_~s__state~0#1); 16023#L64 assume !(8576 == main_~s__state~0#1); 16004#L68 assume !(8592 == main_~s__state~0#1); 15987#L72 assume !(8608 == main_~s__state~0#1); 15988#L76 assume 8640 == main_~s__state~0#1; 15580#L77 assume !(3 == main_~blastFlag~0#1); 15581#L163-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 16041#L188 assume !false; 16039#L35 [2022-07-13 03:28:56,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 4 times [2022-07-13 03:28:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542490352] [2022-07-13 03:28:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,709 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash 530770115, now seen corresponding path program 1 times [2022-07-13 03:28:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098902854] [2022-07-13 03:28:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:56,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:56,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098902854] [2022-07-13 03:28:56,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098902854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:56,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:56,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:56,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020454330] [2022-07-13 03:28:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:56,723 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:28:56,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:56,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:56,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:56,723 INFO L87 Difference]: Start difference. First operand 651 states and 795 transitions. cyclomatic complexity: 166 Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:56,728 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2022-07-13 03:28:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:56,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 634 states and 773 transitions. [2022-07-13 03:28:56,731 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 170 [2022-07-13 03:28:56,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 634 states to 622 states and 758 transitions. [2022-07-13 03:28:56,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 247 [2022-07-13 03:28:56,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 247 [2022-07-13 03:28:56,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 622 states and 758 transitions. [2022-07-13 03:28:56,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:56,734 INFO L369 hiAutomatonCegarLoop]: Abstraction has 622 states and 758 transitions. [2022-07-13 03:28:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states and 758 transitions. [2022-07-13 03:28:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 567. [2022-07-13 03:28:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 567 states have (on average 1.2380952380952381) internal successors, (702), 566 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 702 transitions. [2022-07-13 03:28:56,739 INFO L392 hiAutomatonCegarLoop]: Abstraction has 567 states and 702 transitions. [2022-07-13 03:28:56,739 INFO L374 stractBuchiCegarLoop]: Abstraction has 567 states and 702 transitions. [2022-07-13 03:28:56,739 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-13 03:28:56,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states and 702 transitions. [2022-07-13 03:28:56,740 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 146 [2022-07-13 03:28:56,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:56,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:56,741 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,741 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:56,741 INFO L752 eck$LassoCheckResult]: Stem: 16912#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 16869#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 16870#L188 assume !false; 17317#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17318#L41 assume 8466 == main_~s__state~0#1; 17320#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 16921#L90-1 main_~s__state~0#1 := 8496; 16892#L188 assume !false; 16893#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17395#L41 assume !(8466 == main_~s__state~0#1); 17394#L44 assume 8496 == main_~s__state~0#1; 17380#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17381#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 17146#L188 assume !false; 17278#L35 [2022-07-13 03:28:56,741 INFO L754 eck$LassoCheckResult]: Loop: 17278#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17343#L41 assume !(8466 == main_~s__state~0#1); 17336#L44 assume !(8496 == main_~s__state~0#1); 16896#L48 assume !(8512 == main_~s__state~0#1); 16897#L52 assume !(8528 == main_~s__state~0#1); 16855#L56 assume !(8544 == main_~s__state~0#1); 16856#L60 assume !(8560 == main_~s__state~0#1); 16935#L64 assume !(8576 == main_~s__state~0#1); 17325#L68 assume !(8592 == main_~s__state~0#1); 17323#L72 assume !(8608 == main_~s__state~0#1); 17322#L76 assume !(8640 == main_~s__state~0#1); 17321#L80 assume !(8656 == main_~s__state~0#1); 16908#L84 assume 8672 == main_~s__state~0#1; 16859#L85 assume !(4 == main_~blastFlag~0#1); 16860#L184 assume !(5 == main_~blastFlag~0#1); 16885#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 16943#L188 assume !false; 17278#L35 [2022-07-13 03:28:56,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,742 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 5 times [2022-07-13 03:28:56,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111997744] [2022-07-13 03:28:56,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,745 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1282190981, now seen corresponding path program 1 times [2022-07-13 03:28:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732441295] [2022-07-13 03:28:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,750 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:56,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1587248888, now seen corresponding path program 1 times [2022-07-13 03:28:56,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:56,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048659746] [2022-07-13 03:28:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:28:56,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:56,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048659746] [2022-07-13 03:28:56,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048659746] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:56,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:56,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:56,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953998543] [2022-07-13 03:28:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:56,804 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:56,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:56,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:56,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:56,804 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:56,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:56,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:56,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration11_Loop [2022-07-13 03:28:56,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:56,805 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:56,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:56,842 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,844 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-13 03:28:56,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:56,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,856 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:28:56,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=-1} Honda state: {ULTIMATE.start_main_~s__hit~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:28:56,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-13 03:28:56,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,882 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-13 03:28:56,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:56,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,898 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:28:56,898 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=6} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:28:56,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-13 03:28:56,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,915 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-13 03:28:56,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:56,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-13 03:28:56,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:56,942 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:56,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-13 03:28:56,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:56,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:56,956 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:56,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:56,971 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:56,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:56,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:56,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:56,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:56,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:56,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:56,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:56,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration11_Loop [2022-07-13 03:28:56,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:56,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:56,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:56,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:57,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:57,010 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:57,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,011 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-13 03:28:57,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:57,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:57,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:57,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:57,019 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:28:57,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:57,019 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:28:57,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:57,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:28:57,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-07-13 03:28:57,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,051 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-13 03:28:57,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:57,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:57,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:57,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:57,059 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:28:57,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:57,059 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:28:57,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:57,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:28:57,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-13 03:28:57,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,076 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-13 03:28:57,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:57,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:57,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:57,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:57,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:57,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:57,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:57,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:57,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:57,098 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:57,098 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:28:57,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,100 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-13 03:28:57,102 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:57,102 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:57,102 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:57,102 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-07-13 03:28:57,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:57,120 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:57,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:57,197 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:57,198 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,205 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 573 states and 708 transitions. Complement of second has 5 states. [2022-07-13 03:28:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-13 03:28:57,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 17 letters. [2022-07-13 03:28:57,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,206 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:28:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-13 03:28:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:57,295 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:57,295 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 573 states and 708 transitions. Complement of second has 5 states. [2022-07-13 03:28:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-13 03:28:57,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 17 letters. [2022-07-13 03:28:57,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,303 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:28:57,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:57,358 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:57,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1051 states and 1283 transitions. Complement of second has 8 states. [2022-07-13 03:28:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2022-07-13 03:28:57,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 14 letters. Loop has 17 letters. [2022-07-13 03:28:57,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 31 letters. Loop has 17 letters. [2022-07-13 03:28:57,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 14 letters. Loop has 34 letters. [2022-07-13 03:28:57,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1051 states and 1283 transitions. [2022-07-13 03:28:57,422 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 142 [2022-07-13 03:28:57,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1051 states to 686 states and 832 transitions. [2022-07-13 03:28:57,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2022-07-13 03:28:57,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2022-07-13 03:28:57,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 686 states and 832 transitions. [2022-07-13 03:28:57,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:57,424 INFO L369 hiAutomatonCegarLoop]: Abstraction has 686 states and 832 transitions. [2022-07-13 03:28:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states and 832 transitions. [2022-07-13 03:28:57,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 594. [2022-07-13 03:28:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 594 states have (on average 1.245791245791246) internal successors, (740), 593 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 740 transitions. [2022-07-13 03:28:57,431 INFO L392 hiAutomatonCegarLoop]: Abstraction has 594 states and 740 transitions. [2022-07-13 03:28:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:57,432 INFO L87 Difference]: Start difference. First operand 594 states and 740 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:57,462 INFO L93 Difference]: Finished difference Result 587 states and 730 transitions. [2022-07-13 03:28:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:57,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 730 transitions. [2022-07-13 03:28:57,465 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 140 [2022-07-13 03:28:57,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 565 states and 708 transitions. [2022-07-13 03:28:57,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2022-07-13 03:28:57,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2022-07-13 03:28:57,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 565 states and 708 transitions. [2022-07-13 03:28:57,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:57,468 INFO L369 hiAutomatonCegarLoop]: Abstraction has 565 states and 708 transitions. [2022-07-13 03:28:57,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states and 708 transitions. [2022-07-13 03:28:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 564. [2022-07-13 03:28:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 564 states have (on average 1.25354609929078) internal successors, (707), 563 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 707 transitions. [2022-07-13 03:28:57,472 INFO L392 hiAutomatonCegarLoop]: Abstraction has 564 states and 707 transitions. [2022-07-13 03:28:57,473 INFO L374 stractBuchiCegarLoop]: Abstraction has 564 states and 707 transitions. [2022-07-13 03:28:57,473 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-13 03:28:57,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 564 states and 707 transitions. [2022-07-13 03:28:57,474 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 140 [2022-07-13 03:28:57,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:57,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:57,475 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:57,475 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:57,475 INFO L752 eck$LassoCheckResult]: Stem: 21170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 21134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 21135#L188 assume !false; 21562#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21563#L41 assume 8466 == main_~s__state~0#1; 21645#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 21643#L90-1 main_~s__state~0#1 := 8496; 21641#L188 assume !false; 21640#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21638#L41 assume !(8466 == main_~s__state~0#1); 21637#L44 assume 8496 == main_~s__state~0#1; 21622#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 21164#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 21165#L188 assume !false; 21159#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21160#L41 assume !(8466 == main_~s__state~0#1); 21115#L44 assume !(8496 == main_~s__state~0#1); 21116#L48 assume !(8512 == main_~s__state~0#1); 21369#L52 assume !(8528 == main_~s__state~0#1); 21278#L56 assume !(8544 == main_~s__state~0#1); 21209#L60 [2022-07-13 03:28:57,475 INFO L754 eck$LassoCheckResult]: Loop: 21209#L60 assume 8560 == main_~s__state~0#1; 21119#L61 main_~s__state~0#1 := 8576; 21111#L188 assume !false; 21241#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21235#L41 assume !(8466 == main_~s__state~0#1); 21228#L44 assume !(8496 == main_~s__state~0#1); 21223#L48 assume !(8512 == main_~s__state~0#1); 21218#L52 assume !(8528 == main_~s__state~0#1); 21212#L56 assume !(8544 == main_~s__state~0#1); 21209#L60 [2022-07-13 03:28:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash 985223291, now seen corresponding path program 1 times [2022-07-13 03:28:57,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:57,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523278053] [2022-07-13 03:28:57,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:57,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:28:57,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:57,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523278053] [2022-07-13 03:28:57,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523278053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:57,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:57,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:57,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739108189] [2022-07-13 03:28:57,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:57,492 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:57,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1708032834, now seen corresponding path program 1 times [2022-07-13 03:28:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:57,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49193168] [2022-07-13 03:28:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:57,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:57,494 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:57,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:57,507 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:57,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:57,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:57,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:57,507 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:57,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:57,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:57,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration12_Loop [2022-07-13 03:28:57,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:57,507 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:57,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:57,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:57,518 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:57,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,519 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-13 03:28:57,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:57,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:57,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:57,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,559 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:57,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:57,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-13 03:28:57,579 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:57,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-07-13 03:28:57,594 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:57,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:57,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:57,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:57,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:57,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:57,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:57,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration12_Loop [2022-07-13 03:28:57,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:57,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:57,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:57,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:57,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:57,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,610 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-13 03:28:57,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:57,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:57,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:57,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:57,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:57,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:57,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:57,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:57,630 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:57,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:57,633 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,634 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-13 03:28:57,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:57,636 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:57,636 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:57,636 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8568 Supporting invariants [] [2022-07-13 03:28:57,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-07-13 03:28:57,651 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:57,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:57,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:57,737 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:57,737 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 564 states and 707 transitions. cyclomatic complexity: 163 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,851 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 564 states and 707 transitions. cyclomatic complexity: 163. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 975 states and 1257 transitions. Complement of second has 9 states. [2022-07-13 03:28:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2022-07-13 03:28:57,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 20 letters. Loop has 9 letters. [2022-07-13 03:28:57,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 29 letters. Loop has 9 letters. [2022-07-13 03:28:57,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 20 letters. Loop has 18 letters. [2022-07-13 03:28:57,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:57,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 975 states and 1257 transitions. [2022-07-13 03:28:57,856 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 180 [2022-07-13 03:28:57,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 975 states to 839 states and 1084 transitions. [2022-07-13 03:28:57,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2022-07-13 03:28:57,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2022-07-13 03:28:57,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1084 transitions. [2022-07-13 03:28:57,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:57,859 INFO L369 hiAutomatonCegarLoop]: Abstraction has 839 states and 1084 transitions. [2022-07-13 03:28:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1084 transitions. [2022-07-13 03:28:57,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 668. [2022-07-13 03:28:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 668 states have (on average 1.2889221556886228) internal successors, (861), 667 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 861 transitions. [2022-07-13 03:28:57,865 INFO L392 hiAutomatonCegarLoop]: Abstraction has 668 states and 861 transitions. [2022-07-13 03:28:57,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:57,866 INFO L87 Difference]: Start difference. First operand 668 states and 861 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:57,892 INFO L93 Difference]: Finished difference Result 718 states and 900 transitions. [2022-07-13 03:28:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:57,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 718 states and 900 transitions. [2022-07-13 03:28:57,895 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 171 [2022-07-13 03:28:57,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 718 states to 694 states and 871 transitions. [2022-07-13 03:28:57,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2022-07-13 03:28:57,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2022-07-13 03:28:57,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 694 states and 871 transitions. [2022-07-13 03:28:57,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:57,897 INFO L369 hiAutomatonCegarLoop]: Abstraction has 694 states and 871 transitions. [2022-07-13 03:28:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states and 871 transitions. [2022-07-13 03:28:57,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 686. [2022-07-13 03:28:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 686 states have (on average 1.2565597667638484) internal successors, (862), 685 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 862 transitions. [2022-07-13 03:28:57,904 INFO L392 hiAutomatonCegarLoop]: Abstraction has 686 states and 862 transitions. [2022-07-13 03:28:57,904 INFO L374 stractBuchiCegarLoop]: Abstraction has 686 states and 862 transitions. [2022-07-13 03:28:57,904 INFO L287 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-07-13 03:28:57,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 686 states and 862 transitions. [2022-07-13 03:28:57,905 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2022-07-13 03:28:57,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:57,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:57,906 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:57,906 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:57,906 INFO L752 eck$LassoCheckResult]: Stem: 24210#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 24174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 24175#L188 assume !false; 24715#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24716#L41 assume 8466 == main_~s__state~0#1; 24222#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 24223#L90-1 main_~s__state~0#1 := 8496; 24714#L188 assume !false; 24713#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24711#L41 assume !(8466 == main_~s__state~0#1); 24157#L44 assume 8496 == main_~s__state~0#1; 24158#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 24202#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 24203#L188 assume !false; 24199#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24200#L41 assume !(8466 == main_~s__state~0#1); 24226#L44 assume !(8496 == main_~s__state~0#1); 24196#L48 assume 8512 == main_~s__state~0#1; 24197#L49 main_~s__state~0#1 := 8528; 24563#L188 assume !false; 24561#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24558#L41 assume !(8466 == main_~s__state~0#1); 24556#L44 assume !(8496 == main_~s__state~0#1); 24553#L48 assume !(8512 == main_~s__state~0#1); 24554#L52 assume !(8528 == main_~s__state~0#1); 24393#L56 assume !(8544 == main_~s__state~0#1); 24349#L60 assume !(8560 == main_~s__state~0#1); 24254#L64 [2022-07-13 03:28:57,906 INFO L754 eck$LassoCheckResult]: Loop: 24254#L64 assume 8576 == main_~s__state~0#1; 24251#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 24188#L147 assume !(2 == main_~tmp___1~0#1);main_~s__state~0#1 := 8592; 24155#L188 assume !false; 24308#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24305#L41 assume !(8466 == main_~s__state~0#1); 24303#L44 assume !(8496 == main_~s__state~0#1); 24301#L48 assume !(8512 == main_~s__state~0#1); 24298#L52 assume !(8528 == main_~s__state~0#1); 24291#L56 assume !(8544 == main_~s__state~0#1); 24253#L60 assume !(8560 == main_~s__state~0#1); 24254#L64 [2022-07-13 03:28:57,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 368372739, now seen corresponding path program 1 times [2022-07-13 03:28:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:57,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158561881] [2022-07-13 03:28:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:57,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 03:28:57,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:57,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158561881] [2022-07-13 03:28:57,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158561881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:57,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:57,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:57,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706009576] [2022-07-13 03:28:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:57,917 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:57,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1797154313, now seen corresponding path program 1 times [2022-07-13 03:28:57,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:57,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896230483] [2022-07-13 03:28:57,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:57,919 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:57,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:57,938 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:57,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:57,939 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:57,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:57,939 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:57,939 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,939 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:57,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:57,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration13_Loop [2022-07-13 03:28:57,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:57,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:57,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:57,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:57,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:57,973 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:57,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:57,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:57,975 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:57,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:57,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:57,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-13 03:28:58,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,020 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-13 03:28:58,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:58,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:58,039 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:58,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-13 03:28:58,055 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:58,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:58,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:58,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:58,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:58,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:58,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:58,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration13_Loop [2022-07-13 03:28:58,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:58,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:58,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,092 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:58,092 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:58,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,093 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-13 03:28:58,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:58,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:58,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:58,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:58,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:58,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:58,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:58,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:58,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:58,116 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:58,116 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:28:58,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,118 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-13 03:28:58,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:58,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:58,120 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:58,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8584 Supporting invariants [] [2022-07-13 03:28:58,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,136 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:58,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:58,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:58,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:58,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:58,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:58,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 686 states and 862 transitions. cyclomatic complexity: 196 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 686 states and 862 transitions. cyclomatic complexity: 196. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1151 states and 1475 transitions. Complement of second has 9 states. [2022-07-13 03:28:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2022-07-13 03:28:58,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 27 letters. Loop has 11 letters. [2022-07-13 03:28:58,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:58,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 38 letters. Loop has 11 letters. [2022-07-13 03:28:58,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:58,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 27 letters. Loop has 22 letters. [2022-07-13 03:28:58,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:58,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1151 states and 1475 transitions. [2022-07-13 03:28:58,374 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 228 [2022-07-13 03:28:58,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1151 states to 1010 states and 1297 transitions. [2022-07-13 03:28:58,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 300 [2022-07-13 03:28:58,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 308 [2022-07-13 03:28:58,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1010 states and 1297 transitions. [2022-07-13 03:28:58,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:58,378 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1010 states and 1297 transitions. [2022-07-13 03:28:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states and 1297 transitions. [2022-07-13 03:28:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 829. [2022-07-13 03:28:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 829 states have (on average 1.2882991556091676) internal successors, (1068), 828 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1068 transitions. [2022-07-13 03:28:58,386 INFO L392 hiAutomatonCegarLoop]: Abstraction has 829 states and 1068 transitions. [2022-07-13 03:28:58,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:58,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:58,387 INFO L87 Difference]: Start difference. First operand 829 states and 1068 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:58,416 INFO L93 Difference]: Finished difference Result 886 states and 1109 transitions. [2022-07-13 03:28:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:58,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 886 states and 1109 transitions. [2022-07-13 03:28:58,419 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 212 [2022-07-13 03:28:58,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 886 states to 851 states and 1068 transitions. [2022-07-13 03:28:58,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2022-07-13 03:28:58,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 264 [2022-07-13 03:28:58,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 851 states and 1068 transitions. [2022-07-13 03:28:58,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:58,426 INFO L369 hiAutomatonCegarLoop]: Abstraction has 851 states and 1068 transitions. [2022-07-13 03:28:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states and 1068 transitions. [2022-07-13 03:28:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 836. [2022-07-13 03:28:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 836 states have (on average 1.2583732057416268) internal successors, (1052), 835 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1052 transitions. [2022-07-13 03:28:58,433 INFO L392 hiAutomatonCegarLoop]: Abstraction has 836 states and 1052 transitions. [2022-07-13 03:28:58,433 INFO L374 stractBuchiCegarLoop]: Abstraction has 836 states and 1052 transitions. [2022-07-13 03:28:58,433 INFO L287 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-07-13 03:28:58,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 836 states and 1052 transitions. [2022-07-13 03:28:58,435 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 211 [2022-07-13 03:28:58,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:58,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:58,435 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:58,435 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:58,435 INFO L752 eck$LassoCheckResult]: Stem: 27906#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 27869#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 27870#L188 assume !false; 28320#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28318#L41 assume 8466 == main_~s__state~0#1; 28314#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 28311#L90-1 main_~s__state~0#1 := 8496; 28308#L188 assume !false; 28305#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28303#L41 assume !(8466 == main_~s__state~0#1); 28300#L44 assume 8496 == main_~s__state~0#1; 28298#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 28295#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 28292#L188 assume !false; 28289#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28287#L41 assume !(8466 == main_~s__state~0#1); 28285#L44 assume !(8496 == main_~s__state~0#1); 28283#L48 assume 8512 == main_~s__state~0#1; 28282#L49 main_~s__state~0#1 := 8528; 28281#L188 assume !false; 28279#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28272#L41 assume !(8466 == main_~s__state~0#1); 28270#L44 assume !(8496 == main_~s__state~0#1); 28267#L48 assume !(8512 == main_~s__state~0#1); 28245#L52 assume 8528 == main_~s__state~0#1; 28234#L53 main_~s__state~0#1 := 8544; 28226#L188 assume !false; 28221#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28214#L41 assume !(8466 == main_~s__state~0#1); 28205#L44 assume !(8496 == main_~s__state~0#1); 28204#L48 assume !(8512 == main_~s__state~0#1); 28148#L52 assume !(8528 == main_~s__state~0#1); 28149#L56 assume !(8544 == main_~s__state~0#1); 28108#L60 assume !(8560 == main_~s__state~0#1); 28035#L64 assume 8576 == main_~s__state~0#1; 27953#L65 [2022-07-13 03:28:58,436 INFO L754 eck$LassoCheckResult]: Loop: 27953#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 28134#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 28131#L188 assume !false; 28129#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28125#L41 assume 8466 == main_~s__state~0#1; 28024#L42 assume !(0 == main_~blastFlag~0#1); 28118#L90-1 main_~s__state~0#1 := 8496; 28114#L188 assume !false; 28109#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28106#L41 assume !(8466 == main_~s__state~0#1); 28105#L44 assume 8496 == main_~s__state~0#1; 28019#L45 assume !(1 == main_~blastFlag~0#1); 28099#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 28096#L188 assume !false; 28092#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28088#L41 assume !(8466 == main_~s__state~0#1); 28086#L44 assume !(8496 == main_~s__state~0#1); 28081#L48 assume 8512 == main_~s__state~0#1; 28014#L49 main_~s__state~0#1 := 8528; 28072#L188 assume !false; 28069#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28065#L41 assume !(8466 == main_~s__state~0#1); 28061#L44 assume !(8496 == main_~s__state~0#1); 28056#L48 assume !(8512 == main_~s__state~0#1); 28048#L52 assume 8528 == main_~s__state~0#1; 28009#L53 main_~s__state~0#1 := 8544; 28032#L188 assume !false; 28029#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28023#L41 assume !(8466 == main_~s__state~0#1); 28018#L44 assume !(8496 == main_~s__state~0#1); 28013#L48 assume !(8512 == main_~s__state~0#1); 28008#L52 assume !(8528 == main_~s__state~0#1); 28003#L56 assume !(8544 == main_~s__state~0#1); 27998#L60 assume !(8560 == main_~s__state~0#1); 27995#L64 assume 8576 == main_~s__state~0#1; 27953#L65 [2022-07-13 03:28:58,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1975408204, now seen corresponding path program 1 times [2022-07-13 03:28:58,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630503140] [2022-07-13 03:28:58,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-13 03:28:58,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:58,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630503140] [2022-07-13 03:28:58,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630503140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:58,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:58,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105730419] [2022-07-13 03:28:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:58,457 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:58,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2135132753, now seen corresponding path program 1 times [2022-07-13 03:28:58,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764317104] [2022-07-13 03:28:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-13 03:28:58,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:58,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764317104] [2022-07-13 03:28:58,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764317104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:58,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:58,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:58,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567444178] [2022-07-13 03:28:58,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:58,479 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:28:58,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:58,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:58,479 INFO L87 Difference]: Start difference. First operand 836 states and 1052 transitions. cyclomatic complexity: 236 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:58,512 INFO L93 Difference]: Finished difference Result 878 states and 1072 transitions. [2022-07-13 03:28:58,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:58,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 878 states and 1072 transitions. [2022-07-13 03:28:58,515 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 206 [2022-07-13 03:28:58,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 878 states to 831 states and 1019 transitions. [2022-07-13 03:28:58,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2022-07-13 03:28:58,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2022-07-13 03:28:58,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 831 states and 1019 transitions. [2022-07-13 03:28:58,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:58,518 INFO L369 hiAutomatonCegarLoop]: Abstraction has 831 states and 1019 transitions. [2022-07-13 03:28:58,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states and 1019 transitions. [2022-07-13 03:28:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 808. [2022-07-13 03:28:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 808 states have (on average 1.2314356435643565) internal successors, (995), 807 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 995 transitions. [2022-07-13 03:28:58,528 INFO L392 hiAutomatonCegarLoop]: Abstraction has 808 states and 995 transitions. [2022-07-13 03:28:58,528 INFO L374 stractBuchiCegarLoop]: Abstraction has 808 states and 995 transitions. [2022-07-13 03:28:58,529 INFO L287 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2022-07-13 03:28:58,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 808 states and 995 transitions. [2022-07-13 03:28:58,530 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 205 [2022-07-13 03:28:58,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:58,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:58,531 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:58,531 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:58,531 INFO L752 eck$LassoCheckResult]: Stem: 29627#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 29590#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 29591#L188 assume !false; 30012#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 30006#L41 assume 8466 == main_~s__state~0#1; 30000#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 29936#L90-1 main_~s__state~0#1 := 8496; 29934#L188 assume !false; 29931#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29929#L41 assume !(8466 == main_~s__state~0#1); 29926#L44 assume 8496 == main_~s__state~0#1; 29925#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 29922#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 29918#L188 assume !false; 29916#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29914#L41 assume !(8466 == main_~s__state~0#1); 29913#L44 assume !(8496 == main_~s__state~0#1); 29912#L48 assume 8512 == main_~s__state~0#1; 29910#L49 main_~s__state~0#1 := 8528; 29908#L188 assume !false; 29907#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29905#L41 assume !(8466 == main_~s__state~0#1); 29903#L44 assume !(8496 == main_~s__state~0#1); 29901#L48 assume !(8512 == main_~s__state~0#1); 29899#L52 assume 8528 == main_~s__state~0#1; 29897#L53 main_~s__state~0#1 := 8544; 29896#L188 assume !false; 29894#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29892#L41 assume !(8466 == main_~s__state~0#1); 29890#L44 assume !(8496 == main_~s__state~0#1); 29888#L48 assume !(8512 == main_~s__state~0#1); 29886#L52 assume !(8528 == main_~s__state~0#1); 29884#L56 assume 8544 == main_~s__state~0#1; 29875#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 29871#L188 assume !false; 29869#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29867#L41 assume !(8466 == main_~s__state~0#1); 29860#L44 assume !(8496 == main_~s__state~0#1); 29855#L48 assume !(8512 == main_~s__state~0#1); 29851#L52 assume !(8528 == main_~s__state~0#1); 29827#L56 assume !(8544 == main_~s__state~0#1); 29828#L60 assume !(8560 == main_~s__state~0#1); 29764#L64 assume 8576 == main_~s__state~0#1; 29666#L65 [2022-07-13 03:28:58,531 INFO L754 eck$LassoCheckResult]: Loop: 29666#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 29605#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 29606#L188 assume !false; 29911#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29909#L41 assume 8466 == main_~s__state~0#1; 29742#L42 assume !(0 == main_~blastFlag~0#1); 29906#L90-1 main_~s__state~0#1 := 8496; 29904#L188 assume !false; 29902#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29900#L41 assume !(8466 == main_~s__state~0#1); 29898#L44 assume 8496 == main_~s__state~0#1; 29737#L45 assume !(1 == main_~blastFlag~0#1); 29895#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 29893#L188 assume !false; 29891#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29889#L41 assume !(8466 == main_~s__state~0#1); 29887#L44 assume !(8496 == main_~s__state~0#1); 29885#L48 assume 8512 == main_~s__state~0#1; 29732#L49 main_~s__state~0#1 := 8528; 29882#L188 assume !false; 29881#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29880#L41 assume !(8466 == main_~s__state~0#1); 29873#L44 assume !(8496 == main_~s__state~0#1); 29870#L48 assume !(8512 == main_~s__state~0#1); 29868#L52 assume 8528 == main_~s__state~0#1; 29727#L53 main_~s__state~0#1 := 8544; 29856#L188 assume !false; 29852#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29847#L41 assume !(8466 == main_~s__state~0#1); 29845#L44 assume !(8496 == main_~s__state~0#1); 29842#L48 assume !(8512 == main_~s__state~0#1); 29839#L52 assume !(8528 == main_~s__state~0#1); 29772#L56 assume 8544 == main_~s__state~0#1; 29722#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 29751#L188 assume !false; 29746#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29741#L41 assume !(8466 == main_~s__state~0#1); 29736#L44 assume !(8496 == main_~s__state~0#1); 29731#L48 assume !(8512 == main_~s__state~0#1); 29726#L52 assume !(8528 == main_~s__state~0#1); 29721#L56 assume !(8544 == main_~s__state~0#1); 29716#L60 assume !(8560 == main_~s__state~0#1); 29713#L64 assume 8576 == main_~s__state~0#1; 29666#L65 [2022-07-13 03:28:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash 242898568, now seen corresponding path program 1 times [2022-07-13 03:28:58,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821337932] [2022-07-13 03:28:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 03:28:58,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:58,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821337932] [2022-07-13 03:28:58,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821337932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:58,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:58,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:58,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109189420] [2022-07-13 03:28:58,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:58,559 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:58,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1911359613, now seen corresponding path program 1 times [2022-07-13 03:28:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581117294] [2022-07-13 03:28:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 03:28:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581117294] [2022-07-13 03:28:58,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581117294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:58,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:58,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:58,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503874159] [2022-07-13 03:28:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:58,569 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:28:58,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:58,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:58,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:58,570 INFO L87 Difference]: Start difference. First operand 808 states and 995 transitions. cyclomatic complexity: 204 Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:58,604 INFO L93 Difference]: Finished difference Result 889 states and 1061 transitions. [2022-07-13 03:28:58,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:58,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 889 states and 1061 transitions. [2022-07-13 03:28:58,608 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 182 [2022-07-13 03:28:58,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 889 states to 825 states and 988 transitions. [2022-07-13 03:28:58,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2022-07-13 03:28:58,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2022-07-13 03:28:58,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 825 states and 988 transitions. [2022-07-13 03:28:58,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:58,611 INFO L369 hiAutomatonCegarLoop]: Abstraction has 825 states and 988 transitions. [2022-07-13 03:28:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states and 988 transitions. [2022-07-13 03:28:58,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 816. [2022-07-13 03:28:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 816 states have (on average 1.1997549019607843) internal successors, (979), 815 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 979 transitions. [2022-07-13 03:28:58,621 INFO L392 hiAutomatonCegarLoop]: Abstraction has 816 states and 979 transitions. [2022-07-13 03:28:58,621 INFO L374 stractBuchiCegarLoop]: Abstraction has 816 states and 979 transitions. [2022-07-13 03:28:58,621 INFO L287 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2022-07-13 03:28:58,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 816 states and 979 transitions. [2022-07-13 03:28:58,623 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 182 [2022-07-13 03:28:58,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:58,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:58,623 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 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] [2022-07-13 03:28:58,623 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:58,624 INFO L752 eck$LassoCheckResult]: Stem: 31333#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 31295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 31296#L188 assume !false; 31586#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31587#L41 assume 8466 == main_~s__state~0#1; 31345#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 31340#L90-1 main_~s__state~0#1 := 8496; 31315#L188 assume !false; 31316#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 32019#L41 assume !(8466 == main_~s__state~0#1); 32015#L44 assume 8496 == main_~s__state~0#1; 32012#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 31329#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 31331#L188 assume !false; 32083#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 32082#L41 assume !(8466 == main_~s__state~0#1); 32081#L44 assume !(8496 == main_~s__state~0#1); 31319#L48 assume !(8512 == main_~s__state~0#1); 31320#L52 assume !(8528 == main_~s__state~0#1); 31284#L56 assume !(8544 == main_~s__state~0#1); 31285#L60 assume !(8560 == main_~s__state~0#1); 31336#L64 assume !(8576 == main_~s__state~0#1); 31337#L68 assume !(8592 == main_~s__state~0#1); 31344#L72 assume !(8608 == main_~s__state~0#1); 32062#L76 assume !(8640 == main_~s__state~0#1); 32060#L80 assume 8656 == main_~s__state~0#1; 32058#L81 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 32056#L174-1 main_~s__state~0#1 := 8672; 31939#L188 assume !false; 31937#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31935#L41 assume !(8466 == main_~s__state~0#1); 31933#L44 assume !(8496 == main_~s__state~0#1); 31931#L48 assume !(8512 == main_~s__state~0#1); 31929#L52 assume !(8528 == main_~s__state~0#1); 31927#L56 assume !(8544 == main_~s__state~0#1); 31925#L60 assume !(8560 == main_~s__state~0#1); 31923#L64 assume !(8576 == main_~s__state~0#1); 31921#L68 assume !(8592 == main_~s__state~0#1); 31919#L72 assume !(8608 == main_~s__state~0#1); 31917#L76 assume !(8640 == main_~s__state~0#1); 31915#L80 assume !(8656 == main_~s__state~0#1); 31913#L84 assume 8672 == main_~s__state~0#1; 31911#L85 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 31907#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 31902#L188 assume !false; 31876#L35 [2022-07-13 03:28:58,624 INFO L754 eck$LassoCheckResult]: Loop: 31876#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31875#L41 assume !(8466 == main_~s__state~0#1); 31781#L44 assume !(8496 == main_~s__state~0#1); 31778#L48 assume !(8512 == main_~s__state~0#1); 31776#L52 assume !(8528 == main_~s__state~0#1); 31774#L56 assume !(8544 == main_~s__state~0#1); 31772#L60 assume !(8560 == main_~s__state~0#1); 31770#L64 assume !(8576 == main_~s__state~0#1); 31768#L68 assume !(8592 == main_~s__state~0#1); 31359#L72 assume !(8608 == main_~s__state~0#1); 31360#L76 assume !(8640 == main_~s__state~0#1); 31299#L80 assume 8656 == main_~s__state~0#1; 31300#L81 assume !(2 == main_~blastFlag~0#1); 31338#L174-1 main_~s__state~0#1 := 8672; 31350#L188 assume !false; 31904#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31935#L41 assume !(8466 == main_~s__state~0#1); 31933#L44 assume !(8496 == main_~s__state~0#1); 31931#L48 assume !(8512 == main_~s__state~0#1); 31929#L52 assume !(8528 == main_~s__state~0#1); 31927#L56 assume !(8544 == main_~s__state~0#1); 31925#L60 assume !(8560 == main_~s__state~0#1); 31923#L64 assume !(8576 == main_~s__state~0#1); 31921#L68 assume !(8592 == main_~s__state~0#1); 31919#L72 assume !(8608 == main_~s__state~0#1); 31917#L76 assume !(8640 == main_~s__state~0#1); 31915#L80 assume !(8656 == main_~s__state~0#1); 31913#L84 assume 8672 == main_~s__state~0#1; 31911#L85 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 31907#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 31902#L188 assume !false; 31876#L35 [2022-07-13 03:28:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash -359758799, now seen corresponding path program 1 times [2022-07-13 03:28:58,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95447827] [2022-07-13 03:28:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 03:28:58,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:28:58,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95447827] [2022-07-13 03:28:58,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95447827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:28:58,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:28:58,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:28:58,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941706458] [2022-07-13 03:28:58,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:28:58,646 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:28:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,646 INFO L85 PathProgramCache]: Analyzing trace with hash 944749696, now seen corresponding path program 1 times [2022-07-13 03:28:58,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:58,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242637552] [2022-07-13 03:28:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:58,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:58,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:58,707 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:58,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:58,708 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:58,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:58,708 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:28:58,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:58,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:58,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration16_Loop [2022-07-13 03:28:58,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:58,709 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:58,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,740 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:58,740 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:28:58,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,742 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-13 03:28:58,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:28:58,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:58,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,783 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-07-13 03:28:58,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:28:58,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:28:58,810 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:28:58,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,826 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:28:58,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:28:58,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:28:58,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:28:58,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:28:58,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:28:58,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:28:58,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration16_Loop [2022-07-13 03:28:58,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:28:58,826 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:28:58,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:28:58,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:28:58,859 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:28:58,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,860 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-13 03:28:58,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:28:58,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:28:58,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:28:58,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:28:58,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:28:58,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:28:58,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:28:58,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:28:58,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:28:58,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:28:58,885 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:28:58,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:28:58,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:28:58,886 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:28:58,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-07-13 03:28:58,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:28:58,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:28:58,888 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:28:58,888 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2022-07-13 03:28:58,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,909 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:28:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:58,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:58,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-07-13 03:28:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:58,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:58,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:59,027 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:59,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 822 states and 985 transitions. Complement of second has 5 states. [2022-07-13 03:28:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-13 03:28:59,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 45 letters. Loop has 31 letters. [2022-07-13 03:28:59,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:59,034 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:28:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:59,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:59,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:59,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:59,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:59,122 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:59,122 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,127 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 822 states and 985 transitions. Complement of second has 5 states. [2022-07-13 03:28:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-13 03:28:59,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 45 letters. Loop has 31 letters. [2022-07-13 03:28:59,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:59,132 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:28:59,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:59,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:28:59,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:28:59,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:28:59,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:28:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:28:59,229 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:28:59,229 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1762 states and 2064 transitions. Complement of second has 18 states. [2022-07-13 03:28:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:28:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2022-07-13 03:28:59,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 45 letters. Loop has 31 letters. [2022-07-13 03:28:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:59,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 76 letters. Loop has 31 letters. [2022-07-13 03:28:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:59,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 45 letters. Loop has 62 letters. [2022-07-13 03:28:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:28:59,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1762 states and 2064 transitions. [2022-07-13 03:28:59,317 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 146 [2022-07-13 03:28:59,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1762 states to 1036 states and 1214 transitions. [2022-07-13 03:28:59,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 227 [2022-07-13 03:28:59,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2022-07-13 03:28:59,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1036 states and 1214 transitions. [2022-07-13 03:28:59,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:59,320 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1036 states and 1214 transitions. [2022-07-13 03:28:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states and 1214 transitions. [2022-07-13 03:28:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 864. [2022-07-13 03:28:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 864 states have (on average 1.2025462962962963) internal successors, (1039), 863 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1039 transitions. [2022-07-13 03:28:59,329 INFO L392 hiAutomatonCegarLoop]: Abstraction has 864 states and 1039 transitions. [2022-07-13 03:28:59,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:28:59,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:28:59,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:28:59,329 INFO L87 Difference]: Start difference. First operand 864 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:28:59,340 INFO L93 Difference]: Finished difference Result 861 states and 1025 transitions. [2022-07-13 03:28:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:28:59,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 861 states and 1025 transitions. [2022-07-13 03:28:59,343 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 146 [2022-07-13 03:28:59,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 861 states to 798 states and 957 transitions. [2022-07-13 03:28:59,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 230 [2022-07-13 03:28:59,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2022-07-13 03:28:59,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 798 states and 957 transitions. [2022-07-13 03:28:59,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:28:59,345 INFO L369 hiAutomatonCegarLoop]: Abstraction has 798 states and 957 transitions. [2022-07-13 03:28:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states and 957 transitions. [2022-07-13 03:28:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 719. [2022-07-13 03:28:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 719 states have (on average 1.21557719054242) internal successors, (874), 718 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:28:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 874 transitions. [2022-07-13 03:28:59,352 INFO L392 hiAutomatonCegarLoop]: Abstraction has 719 states and 874 transitions. [2022-07-13 03:28:59,352 INFO L374 stractBuchiCegarLoop]: Abstraction has 719 states and 874 transitions. [2022-07-13 03:28:59,352 INFO L287 stractBuchiCegarLoop]: ======== Iteration 17 ============ [2022-07-13 03:28:59,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 719 states and 874 transitions. [2022-07-13 03:28:59,353 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 131 [2022-07-13 03:28:59,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:28:59,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:28:59,354 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:59,354 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:28:59,359 INFO L752 eck$LassoCheckResult]: Stem: 38012#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 37976#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 37977#L188 assume !false; 38350#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38347#L41 assume 8466 == main_~s__state~0#1; 38345#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 38342#L90-1 main_~s__state~0#1 := 8496; 38340#L188 assume !false; 38337#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38334#L41 assume !(8466 == main_~s__state~0#1); 38330#L44 assume 8496 == main_~s__state~0#1; 38035#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 38007#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 38008#L188 assume !false; 38376#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38374#L41 assume !(8466 == main_~s__state~0#1); 38373#L44 assume !(8496 == main_~s__state~0#1); 38372#L48 assume 8512 == main_~s__state~0#1; 37984#L49 main_~s__state~0#1 := 8528; 37985#L188 assume !false; 38241#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38239#L41 assume !(8466 == main_~s__state~0#1); 38237#L44 assume !(8496 == main_~s__state~0#1); 38235#L48 assume !(8512 == main_~s__state~0#1); 38233#L52 assume 8528 == main_~s__state~0#1; 38045#L53 main_~s__state~0#1 := 8544; 38046#L188 assume !false; 38396#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38395#L41 assume !(8466 == main_~s__state~0#1); 38394#L44 assume !(8496 == main_~s__state~0#1); 38393#L48 assume !(8512 == main_~s__state~0#1); 38392#L52 assume !(8528 == main_~s__state~0#1); 38390#L56 assume 8544 == main_~s__state~0#1; 38383#L57 assume 0 != 1 + main_~s__verify_mode~0#1; 38384#L117 assume !(0 != main_~s__session__peer~0#1); 38388#L124 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0#1) % 4294967296); 38386#L132 main_~s__state~0#1 := 8576; 38410#L188 assume !false; 38003#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38004#L41 assume !(8466 == main_~s__state~0#1); 37956#L44 assume !(8496 == main_~s__state~0#1); 37957#L48 assume !(8512 == main_~s__state~0#1); 38001#L52 assume !(8528 == main_~s__state~0#1); 37964#L56 assume !(8544 == main_~s__state~0#1); 37965#L60 assume !(8560 == main_~s__state~0#1); 38212#L64 assume 8576 == main_~s__state~0#1; 38056#L65 [2022-07-13 03:28:59,359 INFO L754 eck$LassoCheckResult]: Loop: 38056#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 37993#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 37994#L188 assume !false; 38229#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38227#L41 assume 8466 == main_~s__state~0#1; 38102#L42 assume !(0 == main_~blastFlag~0#1); 38223#L90-1 main_~s__state~0#1 := 8496; 38222#L188 assume !false; 38221#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38219#L41 assume !(8466 == main_~s__state~0#1); 38217#L44 assume 8496 == main_~s__state~0#1; 38097#L45 assume !(1 == main_~blastFlag~0#1); 38215#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 38210#L188 assume !false; 38207#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38203#L41 assume !(8466 == main_~s__state~0#1); 38202#L44 assume !(8496 == main_~s__state~0#1); 38201#L48 assume 8512 == main_~s__state~0#1; 38090#L49 main_~s__state~0#1 := 8528; 38195#L188 assume !false; 38193#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38192#L41 assume !(8466 == main_~s__state~0#1); 38190#L44 assume !(8496 == main_~s__state~0#1); 38188#L48 assume !(8512 == main_~s__state~0#1); 38186#L52 assume 8528 == main_~s__state~0#1; 38086#L53 main_~s__state~0#1 := 8544; 38183#L188 assume !false; 38178#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38174#L41 assume !(8466 == main_~s__state~0#1); 38169#L44 assume !(8496 == main_~s__state~0#1); 38165#L48 assume !(8512 == main_~s__state~0#1); 38160#L52 assume !(8528 == main_~s__state~0#1); 38117#L56 assume 8544 == main_~s__state~0#1; 38042#L57 assume 0 != 1 + main_~s__verify_mode~0#1; 37970#L117 assume !(0 != main_~s__session__peer~0#1); 37971#L124 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0#1) % 4294967296); 38111#L132 main_~s__state~0#1 := 8576; 38107#L188 assume !false; 38104#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38101#L41 assume !(8466 == main_~s__state~0#1); 38096#L44 assume !(8496 == main_~s__state~0#1); 38089#L48 assume !(8512 == main_~s__state~0#1); 38085#L52 assume !(8528 == main_~s__state~0#1); 38082#L56 assume !(8544 == main_~s__state~0#1); 38078#L60 assume !(8560 == main_~s__state~0#1); 38074#L64 assume 8576 == main_~s__state~0#1; 38056#L65 [2022-07-13 03:28:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1923687841, now seen corresponding path program 1 times [2022-07-13 03:28:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319031800] [2022-07-13 03:28:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash -180445498, now seen corresponding path program 1 times [2022-07-13 03:28:59,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:59,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948339617] [2022-07-13 03:28:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:59,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,389 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:28:59,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1007086694, now seen corresponding path program 1 times [2022-07-13 03:28:59,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:28:59,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369890430] [2022-07-13 03:28:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:28:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:28:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,404 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:28:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:28:59,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:28:59,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:28:59 BoogieIcfgContainer [2022-07-13 03:28:59,729 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:28:59,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:28:59,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:28:59,730 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:28:59,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:28:51" (3/4) ... [2022-07-13 03:28:59,734 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 03:28:59,774 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 03:28:59,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:28:59,775 INFO L158 Benchmark]: Toolchain (without parser) took 8425.24ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 99.3MB in the beginning and 145.1MB in the end (delta: -45.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,775 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:28:59,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.86ms. Allocated memory is still 125.8MB. Free memory was 99.0MB in the beginning and 100.5MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.08ms. Allocated memory is still 125.8MB. Free memory was 100.5MB in the beginning and 99.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:28:59,776 INFO L158 Benchmark]: Boogie Preprocessor took 15.47ms. Allocated memory is still 125.8MB. Free memory was 98.8MB in the beginning and 97.8MB in the end (delta: 990.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,776 INFO L158 Benchmark]: RCFGBuilder took 279.48ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 85.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,776 INFO L158 Benchmark]: BuchiAutomizer took 7825.46ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 85.8MB in the beginning and 148.2MB in the end (delta: -62.4MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,777 INFO L158 Benchmark]: Witness Printer took 44.87ms. Allocated memory is still 184.5MB. Free memory was 148.2MB in the beginning and 145.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 03:28:59,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.86ms. Allocated memory is still 125.8MB. Free memory was 99.0MB in the beginning and 100.5MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.08ms. Allocated memory is still 125.8MB. Free memory was 100.5MB in the beginning and 99.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.47ms. Allocated memory is still 125.8MB. Free memory was 98.8MB in the beginning and 97.8MB in the end (delta: 990.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.48ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 85.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 7825.46ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 85.8MB in the beginning and 148.2MB in the end (delta: -62.4MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. * Witness Printer took 44.87ms. Allocated memory is still 184.5MB. Free memory was 148.2MB in the beginning and 145.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 26 terminating modules (14 trivial, 10 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8481 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8504 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8520 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8536 and consists of 5 locations. One deterministic module has affine ranking function 8552 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function 5 + -2 * blastFlag and consists of 3 locations. One deterministic module has affine ranking function 8664 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8568 and consists of 5 locations. One deterministic module has affine ranking function 8584 + -1 * s__state and consists of 5 locations. One nondeterministic module has affine ranking function s__state and consists of 4 locations. One nondeterministic module has affine ranking function s__state and consists of 5 locations. 14 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 719 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 17 iterations. TraceHistogramMax:6. Analysis of lassos took 4.3s. Construction of modules took 0.9s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 26. Automata minimization 0.2s AutomataMinimizationTime, 26 MinimizatonAttempts, 1624 StatesRemovedByMinimization, 24 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [10, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/13 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1351 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1335 mSDsluCounter, 2894 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1015 mSDsCounter, 205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1994 IncrementalHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 205 mSolverCounterUnsat, 1879 mSDtfsCounter, 1994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT5 SILN0 SILU0 SILI2 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf89 smp100 dnf120 smp90 tf113 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 12 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701e9c0a=0, s__verify_mode=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27fb9dd4=0, buf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3830d93c=2, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@384385a6=0, s__hit=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@333668aa=0, s__state=8576, tmp___1=2, NULL=1, \result=0, s__session__peer=0, NULL=0, s__s3__tmp__new_cipher__algorithms=-256, cb=0, blastFlag=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__verify_mode = __VERIFIER_nondet_int() ; [L24] int s__session__peer = __VERIFIER_nondet_int() ; [L25] unsigned long s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_long() ; [L26] int buf ; [L27] int cb ; [L28] int blastFlag ; [L29] int tmp___1; [L31] s__state = 8466 [L32] blastFlag = 0 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND TRUE s__state == 8466 [L90] COND TRUE blastFlag == 0 [L91] blastFlag = 1 [L93] s__state = 8496 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND TRUE s__state == 8496 [L97] COND TRUE blastFlag == 1 [L98] blastFlag = 2 [L100] COND FALSE !(\read(s__hit)) [L103] s__state = 8512 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND TRUE s__state == 8512 [L108] s__state = 8528 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND TRUE s__state == 8528 [L112] s__state = 8544 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND TRUE s__state == 8544 [L116] COND TRUE s__verify_mode + 1 [L117] COND FALSE !(s__session__peer != 0) [L125] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L133] s__state = 8576 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND FALSE !(s__state == 8544) [L60] COND FALSE !(s__state == 8560) [L64] COND TRUE s__state == 8576 Loop: [L146] tmp___1 = __VERIFIER_nondet_int() [L147] COND TRUE tmp___1 == 2 [L148] s__state = 8466 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND TRUE s__state == 8466 [L90] COND FALSE !(blastFlag == 0) [L93] s__state = 8496 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND TRUE s__state == 8496 [L97] COND FALSE !(blastFlag == 1) [L100] COND FALSE !(\read(s__hit)) [L103] s__state = 8512 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND TRUE s__state == 8512 [L108] s__state = 8528 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND TRUE s__state == 8528 [L112] s__state = 8544 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND TRUE s__state == 8544 [L116] COND TRUE s__verify_mode + 1 [L117] COND FALSE !(s__session__peer != 0) [L125] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L133] s__state = 8576 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND FALSE !(s__state == 8544) [L60] COND FALSE !(s__state == 8560) [L64] COND TRUE s__state == 8576 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 03:28:59,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)