./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/termination-crafted/Benghazi.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 2b89ce5b96ce55081609675201b2a9a116c2941a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:26:34,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:26:34,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:26:34,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:26:34,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:26:34,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:26:34,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:26:34,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:26:34,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:26:34,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:26:34,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:26:34,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:26:34,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:26:34,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:26:34,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:26:34,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:26:34,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:26:34,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:26:34,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:26:34,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:26:34,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:26:34,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:26:34,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:26:34,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:26:34,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:26:34,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:26:34,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:26:34,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:26:34,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:26:34,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:26:34,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:26:34,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:26:34,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:26:34,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:26:34,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:26:34,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:26:34,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:26:34,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:26:34,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:26:34,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:26:34,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:26:34,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:26:34,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:26:34,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:26:34,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:26:34,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:26:34,974 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:26:34,974 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:26:34,974 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:26:34,974 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:26:34,975 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:26:34,975 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:26:34,975 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:26:34,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:26:34,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:26:34,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:26:34,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:26:34,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:26:34,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:26:34,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:26:34,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:26:34,978 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:26:34,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:26:34,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:26:34,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:26:34,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:26:34,979 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:26:34,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:26:34,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:26:34,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:26:34,980 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:26:34,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:26:34,982 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2020-07-29 01:26:35,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:26:35,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:26:35,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:26:35,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:26:35,301 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:26:35,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2020-07-29 01:26:35,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02bb6498/06ffe2e96d944824a350184011513ead/FLAGa202df05e [2020-07-29 01:26:35,742 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:26:35,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2020-07-29 01:26:35,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02bb6498/06ffe2e96d944824a350184011513ead/FLAGa202df05e [2020-07-29 01:26:36,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b02bb6498/06ffe2e96d944824a350184011513ead [2020-07-29 01:26:36,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:26:36,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:26:36,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:26:36,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:26:36,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:26:36,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fd94d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:26:36,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:26:36,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:26:36,374 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:26:36,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:26:36,404 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:26:36,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36 WrapperNode [2020-07-29 01:26:36,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:26:36,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:26:36,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:26:36,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:26:36,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:26:36,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:26:36,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:26:36,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:26:36,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:26:36,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:26:36,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:26:36,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:26:36,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (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 [2020-07-29 01:26:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:26:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:26:36,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:26:36,728 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:26:36,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36 BoogieIcfgContainer [2020-07-29 01:26:36,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:26:36,732 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:26:36,733 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:26:36,736 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:26:36,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:26:36" (1/3) ... [2020-07-29 01:26:36,739 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e4c2a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (2/3) ... [2020-07-29 01:26:36,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e4c2a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36" (3/3) ... [2020-07-29 01:26:36,742 INFO L371 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2020-07-29 01:26:36,791 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:26:36,792 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:26:36,792 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:26:36,792 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:26:36,792 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:26:36,792 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:26:36,793 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:26:36,793 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:26:36,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:26:36,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:36,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:36,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:36,831 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:26:36,831 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:26:36,832 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:26:36,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:26:36,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:36,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:36,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:36,834 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:26:36,835 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:26:36,843 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2020-07-29 01:26:36,843 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2020-07-29 01:26:36,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:36,850 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:26:36,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:36,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247551207] [2020-07-29 01:26:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:36,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:36,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:36,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:36,957 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:26:36,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:36,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961408913] [2020-07-29 01:26:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:36,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:36,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:36,981 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:36,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:26:36,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:36,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344387171] [2020-07-29 01:26:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:36,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,014 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:37,108 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:26:37,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:26:37,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:26:37,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:26:37,110 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:26:37,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:37,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:26:37,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:26:37,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-07-29 01:26:37,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:26:37,111 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:26:37,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,467 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:26:37,468 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:37,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:37,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:37,605 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=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 [2020-07-29 01:26:37,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:37,634 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:37,634 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} 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 [2020-07-29 01:26:37,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,662 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 [2020-07-29 01:26:37,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:26:37,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:40,868 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:26:40,871 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:26:40,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:26:40,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:26:40,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:26:40,871 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:26:40,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:40,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:26:40,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:26:40,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-07-29 01:26:40,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:26:40,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:26:40,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:40,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:40,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:41,064 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:26:41,070 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-07-29 01:26:41,083 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 [2020-07-29 01:26:41,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:41,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:26:41,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,100 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,134 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 [2020-07-29 01:26:41,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:41,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:26:41,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:26:41,149 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:41,186 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:26:41,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:41,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:26:41,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:26:41,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-29 01:26:41,228 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2020-07-29 01:26:41,242 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,245 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-29 01:26:41,250 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-29 01:26:41,250 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-29 01:26:41,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,291 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 [2020-07-29 01:26:41,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,294 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-29 01:26:41,298 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-29 01:26:41,298 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-29 01:26:41,307 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) [2020-07-29 01:26:41,353 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 [2020-07-29 01:26:41,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:26:41,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,357 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-29 01:26:41,362 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-29 01:26:41,362 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 [2020-07-29 01:26:41,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-29 01:26:41,408 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) [2020-07-29 01:26:41,421 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 [2020-07-29 01:26:41,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,424 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,429 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-07-29 01:26:41,430 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-07-29 01:26:41,437 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) [2020-07-29 01:26:41,478 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 [2020-07-29 01:26:41,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,481 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-29 01:26:41,486 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-07-29 01:26:41,486 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-07-29 01:26:41,494 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,524 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 [2020-07-29 01:26:41,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:41,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:26:41,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:41,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:41,527 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-07-29 01:26:41,533 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-29 01:26:41,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:26:41,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:26:41,564 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-29 01:26:41,564 INFO L444 ModelExtractionUtils]: 8 out of 16 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:41,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:26:41,570 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:26:41,571 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:26:41,571 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-29 01:26:41,608 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:26:41,614 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0;" [2020-07-29 01:26:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:41,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:41,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:26:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:41,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:26:41,690 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {16#unseeded} is VALID [2020-07-29 01:26:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:41,699 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-29 01:26:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:41,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:26:41,712 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#(and (>= oldRank1 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) 0) (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) (ite (> (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) 0) (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 1)))) (>= oldRank0 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) 0) 2 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) 0) 1 0))))} assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; {30#(or (and (>= oldRank1 0) (> oldRank1 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) 0) (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) (ite (> (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) 0) (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 1)))) (>= oldRank0 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) 0) 2 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) 0) 1 0)))) (and (> oldRank0 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d2~0) (* (- 1) ULTIMATE.start_main_~d1~0)) 0) 2 (ite (> (+ (* (- 1) ULTIMATE.start_main_~d1~0) (* 2 ULTIMATE.start_main_~x~0) 1) 0) 1 0))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:26:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:26:41,723 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:26:41,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:26:41,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,749 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:26:41,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-07-29 01:26:41,814 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-07-29 01:26:41,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:26:41,815 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:26:41,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:26:41,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:41,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:41,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:41,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:26:41,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:26:41,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:41,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:41,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-07-29 01:26:41,823 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:41,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:41,825 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 01:26:41,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:41,827 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:26:41,827 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:26:41,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:26:41,829 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:26:41,829 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:41,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:41,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:41,830 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:26:41,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:26:41,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:26:41,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:26:41,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:26:41,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:26:41,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:26:41,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:41,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:41,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:41,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:41,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:41,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:41,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,843 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:26:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:26:41,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-29 01:26:41,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:41,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:41,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:26:41,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:41,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:41,852 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:41,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-29 01:26:41,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:26:41,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:26:41,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:26:41,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:26:41,858 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:41,858 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:41,858 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:41,859 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:26:41,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:26:41,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:41,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:41,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:26:41 BoogieIcfgContainer [2020-07-29 01:26:41,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:26:41,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:26:41,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:26:41,867 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:26:41,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36" (3/4) ... [2020-07-29 01:26:41,871 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:26:41,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:26:41,875 INFO L168 Benchmark]: Toolchain (without parser) took 5770.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.8 MB in the beginning and 925.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 166.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:41,876 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:26:41,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.80 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:41,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:26:41,879 INFO L168 Benchmark]: Boogie Preprocessor took 75.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:41,879 INFO L168 Benchmark]: RCFGBuilder took 215.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:41,880 INFO L168 Benchmark]: BuchiAutomizer took 5133.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:41,881 INFO L168 Benchmark]: Witness Printer took 5.29 ms. Allocated memory is still 1.2 GB. Free memory is still 925.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:26:41,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.80 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5133.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.1 MB in the end (delta: 188.1 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.29 ms. Allocated memory is still 1.2 GB. Free memory is still 925.1 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 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 5 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...