./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/product-lines/email_spec3_product29.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 205de0b8f6967eacbcda2103560b2dc95d16f98c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:14:41,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:14:41,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:14:41,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:14:41,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:14:41,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:14:41,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:14:41,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:14:41,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:14:41,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:14:41,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:14:41,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:14:41,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:14:41,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:14:41,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:14:41,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:14:41,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:14:41,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:14:41,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:14:41,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:14:41,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:14:41,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:14:41,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:14:41,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:14:41,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:14:41,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:14:41,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:14:41,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:14:41,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:14:41,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:14:41,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:14:41,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:14:41,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:14:41,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:14:41,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:14:41,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:14:41,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:14:41,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:14:41,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:14:41,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:14:41,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:14:41,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:14:41,326 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:14:41,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:14:41,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:14:41,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:14:41,328 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:14:41,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:14:41,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:14:41,328 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:14:41,329 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:14:41,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:14:41,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:14:41,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:14:41,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:14:41,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:14:41,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:14:41,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:14:41,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:14:41,331 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:14:41,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:14:41,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:14:41,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:14:41,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:14:41,332 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:14:41,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:14:41,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:14:41,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:14:41,333 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:14:41,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:14:41,334 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 205de0b8f6967eacbcda2103560b2dc95d16f98c [2020-10-20 07:14:41,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:14:41,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:14:41,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:14:41,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:14:41,644 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:14:41,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product29.cil.c [2020-10-20 07:14:41,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110c09854/ca17e190698f4d9a8f7f07e017a3e943/FLAGec8743149 [2020-10-20 07:14:42,438 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:14:42,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product29.cil.c [2020-10-20 07:14:42,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110c09854/ca17e190698f4d9a8f7f07e017a3e943/FLAGec8743149 [2020-10-20 07:14:42,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110c09854/ca17e190698f4d9a8f7f07e017a3e943 [2020-10-20 07:14:42,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:14:42,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:14:42,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:14:42,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:14:42,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:14:42,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:14:42" (1/1) ... [2020-10-20 07:14:42,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14075c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:42, skipping insertion in model container [2020-10-20 07:14:42,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:14:42" (1/1) ... [2020-10-20 07:14:42,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:14:42,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:14:43,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:14:43,356 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:14:43,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:14:43,618 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:14:43,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43 WrapperNode [2020-10-20 07:14:43,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:14:43,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:14:43,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:14:43,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:14:43,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:14:43,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:14:43,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:14:43,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:14:43,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... [2020-10-20 07:14:43,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:14:43,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:14:43,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:14:43,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:14:43,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-20 07:14:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:14:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:14:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:14:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:14:48,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:14:48,021 INFO L298 CfgBuilder]: Removed 689 assume(true) statements. [2020-10-20 07:14:48,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:48 BoogieIcfgContainer [2020-10-20 07:14:48,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:14:48,027 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:14:48,028 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:14:48,032 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:14:48,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:48,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:14:42" (1/3) ... [2020-10-20 07:14:48,034 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c69d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:14:48, skipping insertion in model container [2020-10-20 07:14:48,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:48,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:43" (2/3) ... [2020-10-20 07:14:48,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c69d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:14:48, skipping insertion in model container [2020-10-20 07:14:48,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:48,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:48" (3/3) ... [2020-10-20 07:14:48,039 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec3_product29.cil.c [2020-10-20 07:14:48,089 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:14:48,089 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:14:48,090 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:14:48,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:14:48,090 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:14:48,090 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:14:48,090 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:14:48,091 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:14:48,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1118 states. [2020-10-20 07:14:48,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:48,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:48,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:48,233 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:14:48,234 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:14:48,234 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:14:48,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1118 states. [2020-10-20 07:14:48,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:48,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:48,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:48,253 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:14:48,253 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:14:48,261 INFO L794 eck$LassoCheckResult]: Stem: 495#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(44);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(44);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(11);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(19);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string62.base, #t~string62.offset, 1);call write~init~int(100, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(10, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string65.base, #t~string65.offset, 1);call write~init~int(100, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(10, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(10);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(12);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(18);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(13);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(16);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(25);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string113.base, #t~string113.offset, 1);call write~init~int(115, #t~string113.base, 1 + #t~string113.offset, 1);call write~init~int(10, #t~string113.base, 2 + #t~string113.offset, 1);call write~init~int(0, #t~string113.base, 3 + #t~string113.offset, 1);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(10);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(34);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(16);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(20);call #t~string146.base, #t~string146.offset := #Ultimate.allocOnStack(13);call #t~string149.base, #t~string149.offset := #Ultimate.allocOnStack(16);call #t~string151.base, #t~string151.offset := #Ultimate.allocOnStack(15);call #t~string153.base, #t~string153.offset := #Ultimate.allocOnStack(16);~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~sent_signed~0 := -1; 375#L-1true havoc main_#res;havoc main_#t~ret57, main_~retValue_acc~20, main_~tmp~6;havoc main_~retValue_acc~20;havoc main_~tmp~6; 709#L2240true havoc valid_product_#res;havoc valid_product_~retValue_acc~33;havoc valid_product_~retValue_acc~33;valid_product_~retValue_acc~33 := 1;valid_product_#res := valid_product_~retValue_acc~33; 365#L2248true main_#t~ret57 := valid_product_#res;main_~tmp~6 := main_#t~ret57;havoc main_#t~ret57; 1046#L1660true assume 0 != main_~tmp~6;havoc setup_#t~nondet52, setup_#t~nondet54, setup_#t~nondet56, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 681#L1470true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 250#L1476-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 492#L1035true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 1043#L1041-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string51.base, #t~string51.offset;havoc setup_#t~nondet52;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 683#L1470-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 260#L1476-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 478#L1035-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 1033#L1041-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string53.base, #t~string53.offset;havoc setup_#t~nondet54;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 684#L1470-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 234#L1476-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 483#L1035-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 1021#L1041-8true setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string55.base, #t~string55.offset;havoc setup_#t~nondet56; 537#L1647true havoc test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 719#L2438-1true [2020-10-20 07:14:48,262 INFO L796 eck$LassoCheckResult]: Loop: 719#L2438-1true assume !false; 306#L2293true assume test_~splverifierCounter~0 < 4; 61#L2294true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 862#L2300true assume !(0 == test_~op1~0); 232#L2313true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet74;havoc test_#t~nondet74; 107#L2318true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 719#L2438-1true [2020-10-20 07:14:48,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:48,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-10-20 07:14:48,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:48,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994061535] [2020-10-20 07:14:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:14:48,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994061535] [2020-10-20 07:14:48,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:14:48,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 07:14:48,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141066517] [2020-10-20 07:14:48,649 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:14:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:48,650 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-10-20 07:14:48,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:48,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99960090] [2020-10-20 07:14:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:48,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:48,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:48,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:14:48,749 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:48,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:48,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:48,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:48,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:14:48,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:48,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:48,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:48,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product29.cil.c_Iteration1_Loop [2020-10-20 07:14:48,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:48,753 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:48,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:48,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:48,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:48,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:48,929 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:48,931 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:48,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:14:48,953 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:49,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:14:49,021 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:49,034 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:14:49,067 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:49,067 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:49,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:49,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:49,068 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:14:49,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:49,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:49,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:49,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product29.cil.c_Iteration1_Loop [2020-10-20 07:14:49,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:49,069 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:49,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:49,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:49,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:49,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:49,171 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:49,176 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:49,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:14:49,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:14:49,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:14:49,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:14:49,192 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 07:14:49,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:14:49,196 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 07:14:49,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:49,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:49,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:14:49,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:14:49,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:14:49,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:14:49,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:14:49,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:14:49,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:14:49,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:49,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:14:49,264 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:14:49,264 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:49,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:14:49,271 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:14:49,271 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:14:49,272 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:49,313 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:14:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:49,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:14:49,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:49,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:14:49,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:14:49,754 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 [2020-10-20 07:14:49,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1118 states. Second operand 4 states. [2020-10-20 07:14:50,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1118 states.. Second operand 4 states. Result 5176 states and 9024 transitions. Complement of second has 7 states. [2020-10-20 07:14:50,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:14:50,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:14:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5268 transitions. [2020-10-20 07:14:50,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 5268 transitions. Stem has 18 letters. Loop has 6 letters. [2020-10-20 07:14:50,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:50,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 5268 transitions. Stem has 24 letters. Loop has 6 letters. [2020-10-20 07:14:50,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:50,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 5268 transitions. Stem has 18 letters. Loop has 12 letters. [2020-10-20 07:14:50,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:50,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5176 states and 9024 transitions. [2020-10-20 07:14:50,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2020-10-20 07:14:50,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5176 states to 1035 states and 1896 transitions. [2020-10-20 07:14:50,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2020-10-20 07:14:50,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2020-10-20 07:14:50,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2020-10-20 07:14:50,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:14:50,400 INFO L691 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2020-10-20 07:14:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2020-10-20 07:14:50,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2020-10-20 07:14:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-20 07:14:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2020-10-20 07:14:50,532 INFO L714 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2020-10-20 07:14:50,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:14:50,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 07:14:50,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 07:14:50,538 INFO L87 Difference]: Start difference. First operand 534 states and 975 transitions. Second operand 3 states. [2020-10-20 07:14:50,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:14:50,606 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2020-10-20 07:14:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 07:14:50,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:50,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2020-10-20 07:14:50,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2020-10-20 07:14:50,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2020-10-20 07:14:50,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2020-10-20 07:14:50,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:50,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:14:50,630 INFO L691 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2020-10-20 07:14:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2020-10-20 07:14:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-10-20 07:14:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2020-10-20 07:14:50,648 INFO L714 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-10-20 07:14:50,648 INFO L594 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-10-20 07:14:50,648 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:14:50,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2020-10-20 07:14:50,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:50,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:50,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:50,655 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:14:50,656 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:14:50,656 INFO L794 eck$LassoCheckResult]: Stem: 8272#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(44);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(44);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(11);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(19);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string62.base, #t~string62.offset, 1);call write~init~int(100, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(10, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string65.base, #t~string65.offset, 1);call write~init~int(100, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(10, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(10);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(12);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(18);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(13);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(16);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(25);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string113.base, #t~string113.offset, 1);call write~init~int(115, #t~string113.base, 1 + #t~string113.offset, 1);call write~init~int(10, #t~string113.base, 2 + #t~string113.offset, 1);call write~init~int(0, #t~string113.base, 3 + #t~string113.offset, 1);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(10);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(34);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(16);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(20);call #t~string146.base, #t~string146.offset := #Ultimate.allocOnStack(13);call #t~string149.base, #t~string149.offset := #Ultimate.allocOnStack(16);call #t~string151.base, #t~string151.offset := #Ultimate.allocOnStack(15);call #t~string153.base, #t~string153.offset := #Ultimate.allocOnStack(16);~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~sent_signed~0 := -1; 7979#L-1 havoc main_#res;havoc main_#t~ret57, main_~retValue_acc~20, main_~tmp~6;havoc main_~retValue_acc~20;havoc main_~tmp~6; 7980#L2240 havoc valid_product_#res;havoc valid_product_~retValue_acc~33;havoc valid_product_~retValue_acc~33;valid_product_~retValue_acc~33 := 1;valid_product_#res := valid_product_~retValue_acc~33; 8327#L2248 main_#t~ret57 := valid_product_#res;main_~tmp~6 := main_#t~ret57;havoc main_#t~ret57; 8477#L1660 assume 0 != main_~tmp~6;havoc setup_#t~nondet52, setup_#t~nondet54, setup_#t~nondet56, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 8248#L1470 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 8249#L1476-2 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 8263#L1035 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 8264#L1041-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string51.base, #t~string51.offset;havoc setup_#t~nondet52;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 8258#L1470-2 assume !(1 == setClientId_~handle); 8259#L1473-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 8455#L1476-5 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 8245#L1035-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 8246#L1041-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string53.base, #t~string53.offset;havoc setup_#t~nondet54;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 8262#L1470-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 8173#L1476-8 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 8255#L1035-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 8256#L1041-8 setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string55.base, #t~string55.offset;havoc setup_#t~nondet56; 8412#L1647 havoc test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 8437#L2438-1 assume !false; 8342#L2293 [2020-10-20 07:14:50,656 INFO L796 eck$LassoCheckResult]: Loop: 8342#L2293 assume test_~splverifierCounter~0 < 4; 8065#L2294 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 8009#L2300 assume !(0 == test_~op1~0); 8011#L2313 assume !(0 == test_~op2~0); 8225#L2324 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet75;havoc test_#t~nondet75; 8231#L2329 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 8232#L1035-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 8181#L1041-11 test_~op3~0 := 1; 8041#L2438-1 assume !false; 8342#L2293 [2020-10-20 07:14:50,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:50,657 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-10-20 07:14:50,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:50,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214635443] [2020-10-20 07:14:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:14:50,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214635443] [2020-10-20 07:14:50,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:14:50,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 07:14:50,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770735090] [2020-10-20 07:14:50,769 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:14:50,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:50,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-10-20 07:14:50,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:50,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191324759] [2020-10-20 07:14:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:50,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:50,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:50,793 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:14:51,172 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-20 07:14:51,174 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:51,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:51,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:51,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:51,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:14:51,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:51,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:51,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product29.cil.c_Iteration2_Loop [2020-10-20 07:14:51,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:51,175 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:51,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,389 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-10-20 07:14:51,477 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:51,477 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:14:51,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:14:51,493 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:14:51,494 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Honda state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:51,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:14:51,548 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:51,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:14:51,602 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,639 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:14:51,642 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:51,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:51,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:51,643 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:51,643 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:14:51,643 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,643 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:51,643 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:51,643 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product29.cil.c_Iteration2_Loop [2020-10-20 07:14:51,643 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:51,643 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:51,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:14:51,860 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:51,861 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:51,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:14:51,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:14:51,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:14:51,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:14:51,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:14:51,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:14:51,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:14:51,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:14:51,882 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:14:51,883 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:51,894 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:14:51,895 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:14:51,895 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:14:51,895 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:51,936 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:14:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:52,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:14:52,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:52,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:14:52,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:14:52,209 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 [2020-10-20 07:14:52,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand 4 states. [2020-10-20 07:14:52,250 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440. Second operand 4 states. Result 1039 states and 1901 transitions. Complement of second has 6 states. [2020-10-20 07:14:52,250 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 [2020-10-20 07:14:52,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:14:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2020-10-20 07:14:52,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2020-10-20 07:14:52,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:52,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2020-10-20 07:14:52,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:52,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2020-10-20 07:14:52,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:52,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2020-10-20 07:14:52,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:52,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2020-10-20 07:14:52,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:14:52,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:14:52,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:14:52,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:14:52,266 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:52,266 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:52,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:14:52,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 07:14:52,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 07:14:52,267 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-20 07:14:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:14:52,267 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-20 07:14:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 07:14:52,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-20 07:14:52,268 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:52,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 07:14:52,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:14:52,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:14:52,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:14:52,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:14:52,269 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:52,269 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:52,270 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:52,270 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:14:52,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:14:52,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:52,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:14:52,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:14:52 BoogieIcfgContainer [2020-10-20 07:14:52,279 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:14:52,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:14:52,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:14:52,280 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:14:52,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:48" (3/4) ... [2020-10-20 07:14:52,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:14:52,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:14:52,288 INFO L168 Benchmark]: Toolchain (without parser) took 9656.88 ms. Allocated memory was 40.9 MB in the beginning and 138.4 MB in the end (delta: 97.5 MB). Free memory was 16.1 MB in the beginning and 53.2 MB in the end (delta: -37.1 MB). Peak memory consumption was 60.4 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,289 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 31.5 MB. Free memory was 7.3 MB in the beginning and 7.3 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 985.58 ms. Allocated memory was 40.9 MB in the beginning and 44.6 MB in the end (delta: 3.7 MB). Free memory was 15.3 MB in the beginning and 8.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.60 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 28.0 MB in the beginning and 21.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,293 INFO L168 Benchmark]: Boogie Preprocessor took 150.13 ms. Allocated memory is still 47.2 MB. Free memory was 21.2 MB in the beginning and 6.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,294 INFO L168 Benchmark]: RCFGBuilder took 4038.36 ms. Allocated memory was 47.2 MB in the beginning and 99.1 MB in the end (delta: 51.9 MB). Free memory was 6.1 MB in the beginning and 26.9 MB in the end (delta: -20.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,295 INFO L168 Benchmark]: BuchiAutomizer took 4251.93 ms. Allocated memory was 99.1 MB in the beginning and 138.4 MB in the end (delta: 39.3 MB). Free memory was 26.9 MB in the beginning and 54.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:52,296 INFO L168 Benchmark]: Witness Printer took 6.16 ms. Allocated memory is still 138.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:14:52,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 31.5 MB. Free memory was 7.3 MB in the beginning and 7.3 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 985.58 ms. Allocated memory was 40.9 MB in the beginning and 44.6 MB in the end (delta: 3.7 MB). Free memory was 15.3 MB in the beginning and 8.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 198.60 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 28.0 MB in the beginning and 21.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 150.13 ms. Allocated memory is still 47.2 MB. Free memory was 21.2 MB in the beginning and 6.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 4038.36 ms. Allocated memory was 47.2 MB in the beginning and 99.1 MB in the end (delta: 51.9 MB). Free memory was 6.1 MB in the beginning and 26.9 MB in the end (delta: -20.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 4251.93 ms. Allocated memory was 99.1 MB in the beginning and 138.4 MB in the end (delta: 39.3 MB). Free memory was 26.9 MB in the beginning and 54.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * Witness Printer took 6.16 ms. Allocated memory is still 138.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 533 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5286 SDtfs, 4792 SDslu, 7019 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...