./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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_spec0_product10.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 6176b82523031a539fb61f992e9d4a2cb26367e3 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:20:08,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:20:08,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:20:08,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:20:08,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:20:08,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:20:08,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:20:08,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:20:08,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:20:08,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:20:08,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:20:08,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:20:08,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:20:08,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:20:08,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:20:08,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:20:08,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:20:08,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:20:08,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:20:08,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:20:08,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:20:08,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:20:08,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:20:08,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:20:08,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:20:08,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:20:08,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:20:08,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:20:08,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:20:08,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:20:08,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:20:08,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:20:08,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:20:08,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:20:08,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:20:08,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:20:08,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:20:08,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:20:08,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:20:08,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:20:08,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:20:08,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:20:08,365 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:20:08,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:20:08,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:20:08,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:20:08,367 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:20:08,367 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:20:08,368 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:20:08,368 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:20:08,368 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:20:08,368 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:20:08,369 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:20:08,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:20:08,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:20:08,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:20:08,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:20:08,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:20:08,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:20:08,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:20:08,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:20:08,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:20:08,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:20:08,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:20:08,372 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:20:08,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:20:08,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:20:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:20:08,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:20:08,373 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:20:08,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:20:08,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:20:08,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:20:08,374 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:20:08,376 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:20:08,376 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 -> 6176b82523031a539fb61f992e9d4a2cb26367e3 [2020-10-19 19:20:08,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:20:08,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:20:08,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:20:08,711 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:20:08,712 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:20:08,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2020-10-19 19:20:08,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bcfee79/4807fddcbd124c3a9f42290afd2874e8/FLAG823ddfa2a [2020-10-19 19:20:09,374 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:20:09,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2020-10-19 19:20:09,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bcfee79/4807fddcbd124c3a9f42290afd2874e8/FLAG823ddfa2a [2020-10-19 19:20:09,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65bcfee79/4807fddcbd124c3a9f42290afd2874e8 [2020-10-19 19:20:09,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:20:09,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:20:09,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:20:09,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:20:09,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:20:09,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:20:09" (1/1) ... [2020-10-19 19:20:09,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ffdbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:09, skipping insertion in model container [2020-10-19 19:20:09,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:20:09" (1/1) ... [2020-10-19 19:20:09,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:20:09,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:20:10,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:20:10,368 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:20:10,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:20:10,551 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:20:10,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10 WrapperNode [2020-10-19 19:20:10,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:20:10,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:20:10,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:20:10,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:20:10,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:20:10,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:20:10,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:20:10,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:20:10,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (1/1) ... [2020-10-19 19:20:10,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:20:10,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:20:10,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:20:10,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:20:10,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (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 [2020-10-19 19:20:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-19 19:20:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:20:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:20:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:20:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:20:11,977 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:20:11,977 INFO L298 CfgBuilder]: Removed 159 assume(true) statements. [2020-10-19 19:20:11,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:20:11 BoogieIcfgContainer [2020-10-19 19:20:11,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:20:11,980 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:20:11,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:20:11,985 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:20:11,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:20:11,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:20:09" (1/3) ... [2020-10-19 19:20:11,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a1e479d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:20:11, skipping insertion in model container [2020-10-19 19:20:11,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:20:11,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:20:10" (2/3) ... [2020-10-19 19:20:11,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a1e479d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:20:11, skipping insertion in model container [2020-10-19 19:20:11,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:20:11,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:20:11" (3/3) ... [2020-10-19 19:20:11,990 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec0_product10.cil.c [2020-10-19 19:20:12,042 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:20:12,042 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:20:12,042 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:20:12,042 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:20:12,043 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:20:12,043 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:20:12,043 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:20:12,043 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:20:12,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2020-10-19 19:20:12,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2020-10-19 19:20:12,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:20:12,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:20:12,118 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:20:12,119 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:20:12,119 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:20:12,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states. [2020-10-19 19:20:12,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2020-10-19 19:20:12,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:20:12,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:20:12,129 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:20:12,129 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 19:20:12,136 INFO L794 eck$LassoCheckResult]: Stem: 137#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~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(16);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(16);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(22);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(44);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(44);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(11);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(10);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(12);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(10);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(18);~__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;~head~0.base, ~head~0.offset := 0, 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~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;~__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; 20#L-1true havoc main_#res;havoc main_#t~nondet76, main_#t~ret77, main_~retValue_acc~10, main_~tmp~12;main_~retValue_acc~10 := main_#t~nondet76;havoc main_#t~nondet76;havoc main_~tmp~12; 35#L95true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 32#L103true main_#t~ret77 := valid_product_#res;main_~tmp~12 := main_#t~ret77;havoc main_#t~ret77; 136#L820true assume 0 != main_~tmp~12;havoc setup_#t~nondet71, setup_#t~nondet73, setup_#t~nondet75, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.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_tmp3~0.base, setup_~__cil_tmp3~0.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;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 98#L2574true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 66#L2580-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string70.base, #t~string70.offset;havoc setup_#t~nondet71;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 106#L2574-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 71#L2580-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string72.base, #t~string72.offset;havoc setup_#t~nondet73;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 108#L2574-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 58#L2580-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string74.base, #t~string74.offset;havoc setup_#t~nondet75; 86#L807true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, test_#t~nondet84, test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, 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~13, test_~tmp___0~1, 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~13;havoc test_~tmp___0~1;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; 42#L1427-1true [2020-10-19 19:20:12,137 INFO L796 eck$LassoCheckResult]: Loop: 42#L1427-1true assume !false; 60#L1300true assume test_~splverifierCounter~0 < 4; 18#L1301true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 149#L1307true assume 0 == test_~op1~0;test_~tmp___9~0 := test_#t~nondet78;havoc test_#t~nondet78; 78#L1311true assume 0 != test_~tmp___9~0;test_~op1~0 := 1; 42#L1427-1true [2020-10-19 19:20:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:12,144 INFO L82 PathProgramCache]: Analyzing trace with hash -580026000, now seen corresponding path program 1 times [2020-10-19 19:20:12,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:20:12,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125387171] [2020-10-19 19:20:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:20:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:20:12,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125387171] [2020-10-19 19:20:12,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:20:12,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:20:12,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319528179] [2020-10-19 19:20:12,524 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:20:12,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:12,525 INFO L82 PathProgramCache]: Analyzing trace with hash 103192148, now seen corresponding path program 1 times [2020-10-19 19:20:12,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:20:12,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572412357] [2020-10-19 19:20:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:20:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:20:12,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:20:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:20:12,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:20:12,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:20:12,665 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:20:12,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:20:12,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:20:12,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:20:12,666 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:20:12,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:12,666 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:20:12,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:20:12,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product10.cil.c_Iteration1_Loop [2020-10-19 19:20:12,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:20:12,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:20:12,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:20:12,793 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) [2020-10-19 19:20:12,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:20:12,800 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) [2020-10-19 19:20:12,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:20:12,851 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 [2020-10-19 19:20:12,863 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:20:12,897 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:20:12,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:20:12,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:20:12,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:20:12,897 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:20:12,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:12,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:20:12,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:20:12,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product10.cil.c_Iteration1_Loop [2020-10-19 19:20:12,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:20:12,899 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:20:12,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:12,981 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:20:12,988 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) [2020-10-19 19:20:12,997 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 [2020-10-19 19:20:13,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:20:13,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:20:13,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:20:13,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:20:13,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:20:13,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:20:13,005 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 [2020-10-19 19:20:13,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:20:13,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:20:13,016 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:20:13,032 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:20:13,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:20:13,034 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:20:13,035 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op1~0) = -2*ULTIMATE.start_test_~op1~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:13,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:20:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:13,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:20:13,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:20:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:13,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:20:13,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:20:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:20:13,381 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 [2020-10-19 19:20:13,383 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162 states. Second operand 4 states. [2020-10-19 19:20:13,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162 states.. Second operand 4 states. Result 702 states and 1131 transitions. Complement of second has 7 states. [2020-10-19 19:20:13,610 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 [2020-10-19 19:20:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:20:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 669 transitions. [2020-10-19 19:20:13,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 669 transitions. Stem has 12 letters. Loop has 5 letters. [2020-10-19 19:20:13,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:13,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 669 transitions. Stem has 17 letters. Loop has 5 letters. [2020-10-19 19:20:13,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:13,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 669 transitions. Stem has 12 letters. Loop has 10 letters. [2020-10-19 19:20:13,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:13,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 702 states and 1131 transitions. [2020-10-19 19:20:13,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-10-19 19:20:13,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 702 states to 151 states and 263 transitions. [2020-10-19 19:20:13,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2020-10-19 19:20:13,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2020-10-19 19:20:13,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 263 transitions. [2020-10-19 19:20:13,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:20:13,647 INFO L691 BuchiCegarLoop]: Abstraction has 151 states and 263 transitions. [2020-10-19 19:20:13,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 263 transitions. [2020-10-19 19:20:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 86. [2020-10-19 19:20:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-19 19:20:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 148 transitions. [2020-10-19 19:20:13,687 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 148 transitions. [2020-10-19 19:20:13,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:20:13,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:20:13,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:20:13,693 INFO L87 Difference]: Start difference. First operand 86 states and 148 transitions. Second operand 3 states. [2020-10-19 19:20:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:20:13,740 INFO L93 Difference]: Finished difference Result 156 states and 268 transitions. [2020-10-19 19:20:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:20:13,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 268 transitions. [2020-10-19 19:20:13,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2020-10-19 19:20:13,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 268 transitions. [2020-10-19 19:20:13,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2020-10-19 19:20:13,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2020-10-19 19:20:13,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 268 transitions. [2020-10-19 19:20:13,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:20:13,749 INFO L691 BuchiCegarLoop]: Abstraction has 156 states and 268 transitions. [2020-10-19 19:20:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 268 transitions. [2020-10-19 19:20:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 85. [2020-10-19 19:20:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-19 19:20:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 144 transitions. [2020-10-19 19:20:13,757 INFO L714 BuchiCegarLoop]: Abstraction has 85 states and 144 transitions. [2020-10-19 19:20:13,757 INFO L594 BuchiCegarLoop]: Abstraction has 85 states and 144 transitions. [2020-10-19 19:20:13,758 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:20:13,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 144 transitions. [2020-10-19 19:20:13,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2020-10-19 19:20:13,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:20:13,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:20:13,760 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:20:13,761 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:20:13,761 INFO L794 eck$LassoCheckResult]: Stem: 1254#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~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(16);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.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(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(10);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(16);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(22);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(44);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(44);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(11);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(10);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(12);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(10);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(18);~__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;~head~0.base, ~head~0.offset := 0, 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~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;~__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; 1222#L-1 havoc main_#res;havoc main_#t~nondet76, main_#t~ret77, main_~retValue_acc~10, main_~tmp~12;main_~retValue_acc~10 := main_#t~nondet76;havoc main_#t~nondet76;havoc main_~tmp~12; 1223#L95 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1246#L103 main_#t~ret77 := valid_product_#res;main_~tmp~12 := main_#t~ret77;havoc main_#t~ret77; 1247#L820 assume 0 != main_~tmp~12;havoc setup_#t~nondet71, setup_#t~nondet73, setup_#t~nondet75, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.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_tmp3~0.base, setup_~__cil_tmp3~0.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;setClientId_#in~handle, setClientId_#in~value := setup_bob_~bob___0, setup_bob_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 1184#L2574 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 1185#L2580-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string70.base, #t~string70.offset;havoc setup_#t~nondet71;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh_~rjh___0, setup_rjh_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 1213#L2574-2 assume !(1 == setClientId_~handle); 1214#L2577-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 1266#L2580-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string72.base, #t~string72.offset;havoc setup_#t~nondet73;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck_~chuck___0, setup_chuck_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 1219#L2574-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 1220#L2580-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string74.base, #t~string74.offset;havoc setup_#t~nondet75; 1262#L807 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, test_#t~nondet84, test_#t~nondet85, test_#t~nondet86, test_#t~nondet87, test_#t~nondet88, 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~13, test_~tmp___0~1, 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~13;havoc test_~tmp___0~1;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; 1268#L1427-1 assume !false; 1255#L1300 [2020-10-19 19:20:13,762 INFO L796 eck$LassoCheckResult]: Loop: 1255#L1300 assume test_~splverifierCounter~0 < 4; 1215#L1301 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 1216#L1307 assume !(0 == test_~op1~0); 1257#L1317 assume !(0 == test_~op2~0); 1232#L1331 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet80;havoc test_#t~nondet80; 1233#L1336 assume 0 != test_~tmp___7~0;test_~op3~0 := 1; 1252#L1427-1 assume !false; 1255#L1300 [2020-10-19 19:20:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:13,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1897365039, now seen corresponding path program 1 times [2020-10-19 19:20:13,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:20:13,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919814546] [2020-10-19 19:20:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:20:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:20:13,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919814546] [2020-10-19 19:20:13,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:20:13,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:20:13,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55636775] [2020-10-19 19:20:13,925 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:20:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:13,925 INFO L82 PathProgramCache]: Analyzing trace with hash -235666265, now seen corresponding path program 1 times [2020-10-19 19:20:13,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:20:13,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501457379] [2020-10-19 19:20:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:20:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:20:13,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:20:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:20:13,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:20:13,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:20:13,978 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:20:13,979 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:20:13,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:20:13,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:20:13,979 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:20:13,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:13,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:20:13,980 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:20:13,980 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product10.cil.c_Iteration2_Loop [2020-10-19 19:20:13,980 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:20:13,980 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:20:13,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:13,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:13,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:13,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,081 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:20:14,081 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-19 19:20:14,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:20:14,085 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:14,091 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:20:14,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~op1~0=-5} Honda state: {ULTIMATE.start_test_~op1~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-19 19:20:14,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:20:14,117 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-19 19:20:14,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:20:14,171 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 [2020-10-19 19:20:14,212 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:20:14,215 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:20:14,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:20:14,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:20:14,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:20:14,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:20:14,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:14,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:20:14,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:20:14,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product10.cil.c_Iteration2_Loop [2020-10-19 19:20:14,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:20:14,217 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:20:14,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:20:14,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:20:14,356 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:20:14,368 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 [2020-10-19 19:20:14,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:20:14,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:20:14,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:20:14,371 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 19:20:14,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:20:14,373 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 19:20:14,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:14,376 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:20:14,426 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 [2020-10-19 19:20:14,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:20:14,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:20:14,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:20:14,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:20:14,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:20:14,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:20:14,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:20:14,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:20:14,437 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:20:14,438 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) [2020-10-19 19:20:14,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:20:14,441 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:20:14,441 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:20:14,442 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 [2020-10-19 19:20:14,474 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:20:14,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:20:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:14,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:20:14,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:20:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:20:14,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:20:14,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:20:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:20:14,664 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 [2020-10-19 19:20:14,664 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 144 transitions. cyclomatic complexity: 61 Second operand 4 states. [2020-10-19 19:20:14,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 144 transitions. cyclomatic complexity: 61. Second operand 4 states. Result 155 states and 268 transitions. Complement of second has 6 states. [2020-10-19 19:20:14,680 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 [2020-10-19 19:20:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:20:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2020-10-19 19:20:14,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 14 letters. Loop has 7 letters. [2020-10-19 19:20:14,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:14,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 21 letters. Loop has 7 letters. [2020-10-19 19:20:14,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:14,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 14 letters. Loop has 14 letters. [2020-10-19 19:20:14,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:20:14,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 268 transitions. [2020-10-19 19:20:14,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:20:14,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 0 states and 0 transitions. [2020-10-19 19:20:14,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:20:14,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:20:14,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:20:14,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:20:14,687 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:20:14,688 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:20:14,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:20:14,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:20:14,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:20:14,689 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-19 19:20:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:20:14,689 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 19:20:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 19:20:14,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 19:20:14,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:20:14,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 19:20:14,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:20:14,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:20:14,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:20:14,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:20:14,692 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:20:14,692 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:20:14,692 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:20:14,692 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:20:14,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:20:14,693 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:20:14,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:20:14,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:20:14 BoogieIcfgContainer [2020-10-19 19:20:14,701 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:20:14,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:20:14,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:20:14,702 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:20:14,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:20:11" (3/4) ... [2020-10-19 19:20:14,706 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:20:14,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:20:14,709 INFO L168 Benchmark]: Toolchain (without parser) took 5085.57 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 102.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:20:14,710 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:20:14,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:20:14,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:20:14,713 INFO L168 Benchmark]: Boogie Preprocessor took 58.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:20:14,714 INFO L168 Benchmark]: RCFGBuilder took 1268.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.8 MB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:20:14,715 INFO L168 Benchmark]: BuchiAutomizer took 2720.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.7 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:20:14,716 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:20:14,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 921.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1268.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.8 MB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2720.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 100.7 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 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 * op1 + 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 136 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 85 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 706 SDtfs, 628 SDslu, 855 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: inital27 mio100 ax100 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...