./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive-simple/id_i20_o20-1.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 4d7026bf672987d88e3a6ea48c2c5a690fd9a5f2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:05:45,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:05:45,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:05:45,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:05:45,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:05:45,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:05:45,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:05:45,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:05:45,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:05:45,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:05:45,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:05:45,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:05:45,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:05:45,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:05:45,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:05:45,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:05:45,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:05:45,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:05:45,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:05:45,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:05:45,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:05:45,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:05:45,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:05:45,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:05:45,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:05:45,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:05:45,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:05:45,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:05:45,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:05:45,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:05:45,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:05:45,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:05:45,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:05:45,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:05:45,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:05:45,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:05:45,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:05:45,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:05:45,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:05:45,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:05:45,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:05:45,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:05:45,604 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:05:45,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:05:45,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:05:45,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:05:45,608 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:05:45,608 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:05:45,608 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:05:45,609 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:05:45,609 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:05:45,609 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:05:45,610 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:05:45,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:05:45,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:05:45,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:05:45,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:05:45,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:05:45,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:05:45,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:05:45,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:05:45,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:05:45,613 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:05:45,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:05:45,613 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:05:45,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:05:45,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:05:45,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:05:45,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:05:45,614 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:05:45,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:05:45,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:05:45,615 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:05:45,616 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:05:45,616 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 -> 4d7026bf672987d88e3a6ea48c2c5a690fd9a5f2 [2019-11-19 20:05:45,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:05:45,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:05:45,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:05:45,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:05:45,952 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:05:45,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2019-11-19 20:05:46,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2ffcbdd/1ee96e17ff5340088cf87d5746ee4084/FLAG377a242fe [2019-11-19 20:05:46,478 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:05:46,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i20_o20-1.c [2019-11-19 20:05:46,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2ffcbdd/1ee96e17ff5340088cf87d5746ee4084/FLAG377a242fe [2019-11-19 20:05:46,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2ffcbdd/1ee96e17ff5340088cf87d5746ee4084 [2019-11-19 20:05:46,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:05:46,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:05:46,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:46,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:05:46,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:05:46,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:46" (1/1) ... [2019-11-19 20:05:46,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d43750d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:46, skipping insertion in model container [2019-11-19 20:05:46,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:46" (1/1) ... [2019-11-19 20:05:46,868 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:05:46,884 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:05:47,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:47,108 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:05:47,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:47,141 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:05:47,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47 WrapperNode [2019-11-19 20:05:47,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:47,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:47,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:05:47,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:05:47,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:47,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:05:47,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:05:47,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:05:47,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (1/1) ... [2019-11-19 20:05:47,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:05:47,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:05:47,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:05:47,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:05:47,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (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 [2019-11-19 20:05:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:05:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:05:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-19 20:05:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-19 20:05:47,443 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:05:47,444 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 20:05:47,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:47 BoogieIcfgContainer [2019-11-19 20:05:47,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:05:47,447 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:05:47,447 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:05:47,450 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:05:47,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:47,451 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:05:46" (1/3) ... [2019-11-19 20:05:47,452 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f51ee52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:47, skipping insertion in model container [2019-11-19 20:05:47,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:47,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:47" (2/3) ... [2019-11-19 20:05:47,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f51ee52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:47, skipping insertion in model container [2019-11-19 20:05:47,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:47,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:47" (3/3) ... [2019-11-19 20:05:47,455 INFO L371 chiAutomizerObserver]: Analyzing ICFG id_i20_o20-1.c [2019-11-19 20:05:47,505 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:05:47,506 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:05:47,506 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:05:47,506 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:05:47,506 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:05:47,506 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:05:47,506 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:05:47,507 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:05:47,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-19 20:05:47,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:05:47,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:47,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:47,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:05:47,631 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:05:47,631 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:05:47,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-19 20:05:47,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:05:47,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:47,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:47,638 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:05:47,638 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:05:47,652 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~input~0, main_~result~0;main_~input~0 := 20; 7#L11true call main_#t~ret1 := id(main_~input~0);< 9#idENTRYtrue [2019-11-19 20:05:47,653 INFO L796 eck$LassoCheckResult]: Loop: 9#idENTRYtrue ~x := #in~x; 14#L5true assume !(0 == ~x); 11#L6true call #t~ret0 := id(~x - 1);< 9#idENTRYtrue [2019-11-19 20:05:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:47,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-11-19 20:05:47,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:47,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117135405] [2019-11-19 20:05:47,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,752 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:47,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:47,753 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-11-19 20:05:47,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:47,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647968111] [2019-11-19 20:05:47,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,765 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:47,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:47,767 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-11-19 20:05:47,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:47,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351232569] [2019-11-19 20:05:47,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:47,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:47,905 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:47,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:47,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:47,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:47,906 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:47,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:47,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:47,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:47,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i20_o20-1.c_Iteration1_Loop [2019-11-19 20:05:47,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:47,907 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:47,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:47,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:47,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:47,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,045 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:48,046 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) [2019-11-19 20:05:48,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,063 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 [2019-11-19 20:05:48,073 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:48,074 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:48,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:48,089 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,096 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:48,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:48,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:48,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-1} Honda state: {id_#in~x=-1} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 0, 5] Nus: [1, 0] 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:48,141 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:48,141 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-19 20:05:48,182 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:48,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:48,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:48,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:48,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:48,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:48,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:48,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i20_o20-1.c_Iteration1_Lasso [2019-11-19 20:05:48,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:48,184 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:48,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,308 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:48,309 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,325 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 [2019-11-19 20:05:48,330 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:48,330 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:48,346 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:48,370 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,387 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:48,390 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:48,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:48,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:48,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:48,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:48,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:48,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:48,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i20_o20-1.c_Iteration1_Lasso [2019-11-19 20:05:48,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:48,392 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:48,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,526 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:48,532 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,546 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 [2019-11-19 20:05:48,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:48,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,572 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 [2019-11-19 20:05:48,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,596 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 [2019-11-19 20:05:48,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:48,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,616 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 [2019-11-19 20:05:48,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:48,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,640 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 [2019-11-19 20:05:48,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,656 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 Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:48,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,681 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 [2019-11-19 20:05:48,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,684 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-19 20:05:48,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,710 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-19 20:05:48,711 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-19 20:05:48,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:48,783 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 20:05:48,783 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:48,791 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,798 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-19 20:05:48,798 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:48,799 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2019-11-19 20:05:48,806 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 20:05:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:48,951 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-19 20:05:48,953 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 5 states. [2019-11-19 20:05:49,095 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 5 states. Result 29 states and 34 transitions. Complement of second has 13 states. [2019-11-19 20:05:49,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:05:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:05:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-19 20:05:49,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-19 20:05:49,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:49,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-19 20:05:49,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:49,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-19 20:05:49,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:49,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-11-19 20:05:49,114 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:05:49,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-11-19 20:05:49,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 20:05:49,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 20:05:49,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 20:05:49,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:49,122 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:05:49,122 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:05:49,122 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:05:49,123 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:05:49,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 20:05:49,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:05:49,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 20:05:49,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:05:49 BoogieIcfgContainer [2019-11-19 20:05:49,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:05:49,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:05:49,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:05:49,138 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:05:49,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:47" (3/4) ... [2019-11-19 20:05:49,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 20:05:49,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:05:49,147 INFO L168 Benchmark]: Toolchain (without parser) took 2295.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 953.7 MB in the beginning and 896.3 MB in the end (delta: 57.3 MB). Peak memory consumption was 164.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:49,148 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:49,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.40 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:49,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:49,151 INFO L168 Benchmark]: Boogie Preprocessor took 16.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:49,152 INFO L168 Benchmark]: RCFGBuilder took 198.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:49,153 INFO L168 Benchmark]: BuchiAutomizer took 1684.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.3 MB in the end (delta: 189.6 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:49,154 INFO L168 Benchmark]: Witness Printer took 13.69 ms. Allocated memory is still 1.1 GB. Free memory is still 896.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:49,158 INFO L335 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 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.40 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 198.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1684.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 896.3 MB in the end (delta: 189.6 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB. * Witness Printer took 13.69 ms. Allocated memory is still 1.1 GB. Free memory is still 896.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq202 hnf95 smp100 dnf150 smp100 tf102 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 127ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 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...