./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product14.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_spec1_product14.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 1f55b75e871e72007c117e8967e50be91fa054bf .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:13:57,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:13:57,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:13:57,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:13:57,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:13:57,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:13:57,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:13:57,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:13:57,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:13:57,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:13:57,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:13:57,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:13:57,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:13:57,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:13:58,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:13:58,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:13:58,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:13:58,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:13:58,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:13:58,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:13:58,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:13:58,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:13:58,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:13:58,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:13:58,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:13:58,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:13:58,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:13:58,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:13:58,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:13:58,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:13:58,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:13:58,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:13:58,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:13:58,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:13:58,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:13:58,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:13:58,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:13:58,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:13:58,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:13:58,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:13:58,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:13:58,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:13:58,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:13:58,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:13:58,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:13:58,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:13:58,067 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:13:58,067 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:13:58,068 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:13:58,068 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:13:58,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:13:58,068 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:13:58,069 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:13:58,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:13:58,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:13:58,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:13:58,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:13:58,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:13:58,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:13:58,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:13:58,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:13:58,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:13:58,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:13:58,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:13:58,071 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:13:58,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:13:58,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:13:58,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:13:58,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:13:58,073 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:13:58,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:13:58,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:13:58,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:13:58,074 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:13:58,075 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:13:58,075 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 -> 1f55b75e871e72007c117e8967e50be91fa054bf [2020-10-20 07:13:58,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:13:58,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:13:58,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:13:58,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:13:58,267 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:13:58,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2020-10-20 07:13:58,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f60dfc6a/1a2cfdd3d7524a61b6ce33c48bff6835/FLAG45a5db52a [2020-10-20 07:13:58,944 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:13:58,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2020-10-20 07:13:58,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f60dfc6a/1a2cfdd3d7524a61b6ce33c48bff6835/FLAG45a5db52a [2020-10-20 07:13:59,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f60dfc6a/1a2cfdd3d7524a61b6ce33c48bff6835 [2020-10-20 07:13:59,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:13:59,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:13:59,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:13:59,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:13:59,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:13:59,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:13:59" (1/1) ... [2020-10-20 07:13:59,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6b86ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:13:59, skipping insertion in model container [2020-10-20 07:13:59,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:13:59" (1/1) ... [2020-10-20 07:13:59,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:13:59,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:13:59,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:13:59,954 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:14:00,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:14:00,151 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:14:00,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00 WrapperNode [2020-10-20 07:14:00,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:14:00,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:14:00,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:14:00,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:14:00,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:14:00,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:14:00,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:14:00,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:14:00,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (1/1) ... [2020-10-20 07:14:00,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:14:00,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:14:00,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:14:00,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:14:00,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (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 07:14:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-20 07:14:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:14:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:14:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:14:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:14:03,165 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:14:03,165 INFO L298 CfgBuilder]: Removed 465 assume(true) statements. [2020-10-20 07:14:03,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:03 BoogieIcfgContainer [2020-10-20 07:14:03,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:14:03,168 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:14:03,169 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:14:03,175 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:14:03,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:03,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:13:59" (1/3) ... [2020-10-20 07:14:03,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5284ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:14:03, skipping insertion in model container [2020-10-20 07:14:03,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:03,178 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:14:00" (2/3) ... [2020-10-20 07:14:03,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5284ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:14:03, skipping insertion in model container [2020-10-20 07:14:03,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:14:03,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:03" (3/3) ... [2020-10-20 07:14:03,180 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec1_product14.cil.c [2020-10-20 07:14:03,230 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:14:03,231 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:14:03,231 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:14:03,231 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:14:03,231 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:14:03,231 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:14:03,232 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:14:03,232 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:14:03,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 760 states. [2020-10-20 07:14:03,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:03,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:03,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:03,366 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 07:14:03,366 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:14:03,366 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:14:03,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 760 states. [2020-10-20 07:14:03,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:03,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:03,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:03,378 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 07:14:03,378 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:14:03,385 INFO L794 eck$LassoCheckResult]: Stem: 494#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(10);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(34);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(16);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(20);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(10);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(12);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(10);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(18);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(16);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string57.base, #t~string57.offset, 1);call write~init~int(115, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(10, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(21);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(30);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(25);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(30);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(25);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(44);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(44);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(9);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(11);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(19);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string124.base, #t~string124.offset, 1);call write~init~int(100, #t~string124.base, 1 + #t~string124.offset, 1);call write~init~int(10, #t~string124.base, 2 + #t~string124.offset, 1);call write~init~int(0, #t~string124.base, 3 + #t~string124.offset, 1);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string127.base, #t~string127.offset, 1);call write~init~int(100, #t~string127.base, 1 + #t~string127.offset, 1);call write~init~int(10, #t~string127.base, 2 + #t~string127.offset, 1);call write~init~int(0, #t~string127.base, 3 + #t~string127.offset, 1);~__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;~mail_is_sensitive~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 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; 353#L-1true havoc main_#res;havoc main_#t~ret119, main_~retValue_acc~32, main_~tmp~18;havoc main_~retValue_acc~32;havoc main_~tmp~18; 243#L1597true havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 732#L1605true main_#t~ret119 := valid_product_#res;main_~tmp~18 := main_#t~ret119;havoc main_#t~ret119; 749#L2342true assume 0 != main_~tmp~18;havoc setup_#t~nondet114, setup_#t~nondet116, setup_#t~nondet118, 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; 274#L1104true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 414#L1110-2true 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; 722#L669true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 62#L675-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string113.base, #t~string113.offset;havoc setup_#t~nondet114;~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; 256#L1104-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 423#L1110-5true 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; 731#L669-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 38#L675-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string115.base, #t~string115.offset;havoc setup_#t~nondet116;~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; 259#L1104-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 390#L1110-8true 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; 694#L669-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 49#L675-8true setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string117.base, #t~string117.offset;havoc setup_#t~nondet118; 83#L2329true havoc test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, test_#t~nondet101, test_#t~nondet102, test_#t~nondet103, test_#t~nondet104, test_#t~nondet105, 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~16, test_~tmp___0~5, test_~tmp___1~3, test_~tmp___2~3, 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~16;havoc test_~tmp___0~5;havoc test_~tmp___1~3;havoc test_~tmp___2~3;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; 229#L2170-1true [2020-10-20 07:14:03,386 INFO L796 eck$LassoCheckResult]: Loop: 229#L2170-1true assume !false; 554#L2025true assume test_~splverifierCounter~0 < 4; 489#L2026true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 687#L2032true assume !(0 == test_~op1~0); 744#L2045true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet96;havoc test_#t~nondet96; 328#L2050true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 229#L2170-1true [2020-10-20 07:14:03,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:03,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-10-20 07:14:03,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:03,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318554149] [2020-10-20 07:14:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:03,828 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 07:14:03,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318554149] [2020-10-20 07:14:03,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:14:03,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 07:14:03,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317451588] [2020-10-20 07:14:03,835 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:14:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:03,836 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-10-20 07:14:03,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:03,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224459166] [2020-10-20 07:14:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:03,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:03,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:03,883 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:14:03,936 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:03,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:03,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:03,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:03,937 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:14:03,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:03,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:03,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:03,938 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration1_Loop [2020-10-20 07:14:03,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:03,938 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:03,960 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 07:14:03,975 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 07:14:03,981 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 07:14:03,987 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 07:14:04,067 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:04,068 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 07:14:04,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:14:04,075 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 07:14:04,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:14:04,122 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 07:14:04,132 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:14:04,164 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:04,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:04,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:04,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:04,165 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:14:04,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:04,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:04,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:04,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration1_Loop [2020-10-20 07:14:04,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:04,166 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:04,167 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 07:14:04,177 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 07:14:04,183 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 07:14:04,191 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 07:14:04,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:04,305 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 07:14:04,310 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 07:14:04,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:14:04,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:14:04,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:14:04,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:14:04,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:14:04,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:14:04,319 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 07:14:04,323 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:14:04,348 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:14:04,349 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) [2020-10-20 07:14:04,356 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:14:04,356 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:14:04,357 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:14:04,358 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:04,387 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:14:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:04,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:14:04,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:04,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:14:04,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:04,759 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 07:14:04,776 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 07:14:04,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 760 states. Second operand 4 states. [2020-10-20 07:14:05,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 760 states.. Second operand 4 states. Result 3410 states and 5990 transitions. Complement of second has 7 states. [2020-10-20 07:14:05,071 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 07:14:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:14:05,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3438 transitions. [2020-10-20 07:14:05,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3438 transitions. Stem has 18 letters. Loop has 6 letters. [2020-10-20 07:14:05,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:05,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3438 transitions. Stem has 24 letters. Loop has 6 letters. [2020-10-20 07:14:05,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:05,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3438 transitions. Stem has 18 letters. Loop has 12 letters. [2020-10-20 07:14:05,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:05,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3410 states and 5990 transitions. [2020-10-20 07:14:05,117 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2020-10-20 07:14:05,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3410 states to 1035 states and 1896 transitions. [2020-10-20 07:14:05,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2020-10-20 07:14:05,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2020-10-20 07:14:05,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2020-10-20 07:14:05,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:14:05,138 INFO L691 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2020-10-20 07:14:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2020-10-20 07:14:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2020-10-20 07:14:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-10-20 07:14:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2020-10-20 07:14:05,206 INFO L714 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2020-10-20 07:14:05,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:14:05,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 07:14:05,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 07:14:05,212 INFO L87 Difference]: Start difference. First operand 534 states and 975 transitions. Second operand 3 states. [2020-10-20 07:14:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:14:05,302 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2020-10-20 07:14:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 07:14:05,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:05,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2020-10-20 07:14:05,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2020-10-20 07:14:05,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2020-10-20 07:14:05,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2020-10-20 07:14:05,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:05,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:14:05,324 INFO L691 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2020-10-20 07:14:05,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2020-10-20 07:14:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2020-10-20 07:14:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-10-20 07:14:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2020-10-20 07:14:05,346 INFO L714 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-10-20 07:14:05,346 INFO L594 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-10-20 07:14:05,346 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:14:05,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2020-10-20 07:14:05,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-10-20 07:14:05,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:14:05,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:14:05,355 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 07:14:05,355 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:14:05,356 INFO L794 eck$LassoCheckResult]: Stem: 6214#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(10);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(34);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(16);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(20);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(10);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(12);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(10);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(18);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(16);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string57.base, #t~string57.offset, 1);call write~init~int(115, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(10, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(21);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(30);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(25);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(30);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(25);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(44);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(44);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(9);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(11);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(19);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string124.base, #t~string124.offset, 1);call write~init~int(100, #t~string124.base, 1 + #t~string124.offset, 1);call write~init~int(10, #t~string124.base, 2 + #t~string124.offset, 1);call write~init~int(0, #t~string124.base, 3 + #t~string124.offset, 1);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string127.base, #t~string127.offset, 1);call write~init~int(100, #t~string127.base, 1 + #t~string127.offset, 1);call write~init~int(10, #t~string127.base, 2 + #t~string127.offset, 1);call write~init~int(0, #t~string127.base, 3 + #t~string127.offset, 1);~__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;~mail_is_sensitive~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 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; 5861#L-1 havoc main_#res;havoc main_#t~ret119, main_~retValue_acc~32, main_~tmp~18;havoc main_~retValue_acc~32;havoc main_~tmp~18; 5862#L1597 havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 6353#L1605 main_#t~ret119 := valid_product_#res;main_~tmp~18 := main_#t~ret119;havoc main_#t~ret119; 6373#L2342 assume 0 != main_~tmp~18;havoc setup_#t~nondet114, setup_#t~nondet116, setup_#t~nondet118, 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; 6374#L1104 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 6039#L1110-2 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; 6040#L669 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 6100#L675-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string113.base, #t~string113.offset;havoc setup_#t~nondet114;~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; 6111#L1104-2 assume !(1 == setClientId_~handle); 6358#L1107-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 6083#L1110-5 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; 6084#L669-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 6053#L675-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string115.base, #t~string115.offset;havoc setup_#t~nondet116;~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; 6054#L1104-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5969#L1110-8 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; 5970#L669-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 6066#L675-8 setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string117.base, #t~string117.offset;havoc setup_#t~nondet118; 6085#L2329 havoc test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, test_#t~nondet101, test_#t~nondet102, test_#t~nondet103, test_#t~nondet104, test_#t~nondet105, 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~16, test_~tmp___0~5, test_~tmp___1~3, test_~tmp___2~3, 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~16;havoc test_~tmp___0~5;havoc test_~tmp___1~3;havoc test_~tmp___2~3;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; 6154#L2170-1 assume !false; 6315#L2025 [2020-10-20 07:14:05,356 INFO L796 eck$LassoCheckResult]: Loop: 6315#L2025 assume test_~splverifierCounter~0 < 4; 6202#L2026 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 6203#L2032 assume !(0 == test_~op1~0); 6312#L2045 assume !(0 == test_~op2~0); 6377#L2056 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet97;havoc test_#t~nondet97; 6378#L2061 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; 6369#L669-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5975#L675-11 test_~op3~0 := 1; 5931#L2170-1 assume !false; 6315#L2025 [2020-10-20 07:14:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:05,356 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-10-20 07:14:05,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:05,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322246908] [2020-10-20 07:14:05,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:05,498 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 07:14:05,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322246908] [2020-10-20 07:14:05,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:14:05,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 07:14:05,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181131234] [2020-10-20 07:14:05,503 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:14:05,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:05,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-10-20 07:14:05,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:14:05,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247268211] [2020-10-20 07:14:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:14:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:05,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:14:05,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:14:05,549 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:14:05,616 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:05,616 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:05,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:05,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:05,617 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:14:05,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:05,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:05,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:05,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration2_Loop [2020-10-20 07:14:05,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:05,618 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:05,619 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 07:14:05,625 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 07:14:05,628 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 07:14:05,634 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 07:14:05,642 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 07:14:05,645 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 07:14:05,651 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 07:14:05,799 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:05,799 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) [2020-10-20 07:14:05,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:14:05,814 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 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) [2020-10-20 07:14:05,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:14:05,874 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:05,926 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:14:05,929 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:14:05,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:14:05,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:14:05,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:14:05,929 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:14:05,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:05,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:14:05,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:14:05,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration2_Loop [2020-10-20 07:14:05,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:14:05,930 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:14:05,933 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 07:14:05,987 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 07:14:05,990 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 07:14:05,993 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 07:14:06,006 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 07:14:06,012 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 07:14:06,019 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 07:14:06,137 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:14:06,137 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:06,162 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 07:14:06,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:14:06,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:14:06,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:14:06,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:14:06,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:14:06,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:14:06,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:14:06,170 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:14:06,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:14:06,173 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:14:06,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:14:06,181 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:14:06,181 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:14:06,181 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:14:06,201 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:14:06,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:14:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:06,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:14:06,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:14:06,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:14:06,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:14:06,450 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 07:14:06,452 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 07:14:06,452 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand 4 states. [2020-10-20 07:14:06,530 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 07:14:06,531 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 07:14:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:14:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2020-10-20 07:14:06,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2020-10-20 07:14:06,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:06,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2020-10-20 07:14:06,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:06,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2020-10-20 07:14:06,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:14:06,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2020-10-20 07:14:06,554 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:06,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2020-10-20 07:14:06,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:14:06,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:14:06,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:14:06,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:14:06,555 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:06,555 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:06,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:14:06,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 07:14:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 07:14:06,556 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-20 07:14:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:14:06,557 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-20 07:14:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 07:14:06,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-20 07:14:06,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:06,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 07:14:06,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:14:06,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:14:06,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:14:06,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:14:06,559 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:06,559 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:06,559 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:14:06,559 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:14:06,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:14:06,559 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:14:06,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:14:06,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:14:06 BoogieIcfgContainer [2020-10-20 07:14:06,579 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:14:06,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:14:06,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:14:06,580 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:14:06,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:14:03" (3/4) ... [2020-10-20 07:14:06,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:14:06,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:14:06,590 INFO L168 Benchmark]: Toolchain (without parser) took 7443.40 ms. Allocated memory was 37.2 MB in the beginning and 107.5 MB in the end (delta: 70.3 MB). Free memory was 16.3 MB in the beginning and 58.1 MB in the end (delta: -41.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,592 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 34.6 MB. Free memory was 11.5 MB in the beginning and 11.4 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1003.57 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 15.4 MB in the beginning and 12.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.01 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 12.5 MB in the beginning and 20.9 MB in the end (delta: -8.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,601 INFO L168 Benchmark]: Boogie Preprocessor took 203.25 ms. Allocated memory is still 49.8 MB. Free memory was 20.9 MB in the beginning and 23.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,602 INFO L168 Benchmark]: RCFGBuilder took 2641.49 ms. Allocated memory was 49.8 MB in the beginning and 83.4 MB in the end (delta: 33.6 MB). Free memory was 23.8 MB in the beginning and 37.9 MB in the end (delta: -14.1 MB). Peak memory consumption was 50.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,602 INFO L168 Benchmark]: BuchiAutomizer took 3410.89 ms. Allocated memory was 83.4 MB in the beginning and 107.5 MB in the end (delta: 24.1 MB). Free memory was 37.1 MB in the beginning and 59.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,603 INFO L168 Benchmark]: Witness Printer took 7.23 ms. Allocated memory is still 107.5 MB. Free memory was 59.2 MB in the beginning and 58.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 07:14:06,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 34.6 MB. Free memory was 11.5 MB in the beginning and 11.4 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1003.57 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 15.4 MB in the beginning and 12.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 168.01 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 12.5 MB in the beginning and 20.9 MB in the end (delta: -8.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 203.25 ms. Allocated memory is still 49.8 MB. Free memory was 20.9 MB in the beginning and 23.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2641.49 ms. Allocated memory was 49.8 MB in the beginning and 83.4 MB in the end (delta: 33.6 MB). Free memory was 23.8 MB in the beginning and 37.9 MB in the end (delta: -14.1 MB). Peak memory consumption was 50.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3410.89 ms. Allocated memory was 83.4 MB in the beginning and 107.5 MB in the end (delta: 24.1 MB). Free memory was 37.1 MB in the beginning and 59.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Witness Printer took 7.23 ms. Allocated memory is still 107.5 MB. Free memory was 59.2 MB in the beginning and 58.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. 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 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s 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: 4082 SDtfs, 3588 SDslu, 5213 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: sat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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...