./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer --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 789f149e52c1257ff5e3982eeab3f3be6cd1ce79 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:29,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:29,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:29,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:29,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:29,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:29,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:29,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:29,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:29,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:29,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:29,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:29,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:29,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:29,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:29,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:29,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:29,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:29,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:29,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:29,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:29,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:29,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:29,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:29,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:29,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:29,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:29,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:29,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:29,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:29,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:29,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:29,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:29,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:29,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:29,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:29,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:29,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:29,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:29,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:29,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:29,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:20:29,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:29,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:29,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:29,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:29,920 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:29,920 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:20:29,921 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:20:29,921 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:20:29,921 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:20:29,921 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:20:29,922 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:20:29,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:29,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:29,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:29,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:29,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:20:29,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:20:29,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:20:29,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:29,924 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:20:29,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:29,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:20:29,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:29,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:29,926 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:20:29,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:29,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:29,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:29,927 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:20:29,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:20:29,929 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 789f149e52c1257ff5e3982eeab3f3be6cd1ce79 [2020-11-28 03:20:30,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:30,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:30,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:30,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:30,271 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:30,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaC7.c [2020-11-28 03:20:30,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/data/c770d1ad7/c7c59c7957b64cafac76d282f53ec657/FLAG91e29bfdc [2020-11-28 03:20:30,811 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:30,812 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/sv-benchmarks/c/termination-restricted-15/PastaC7.c [2020-11-28 03:20:30,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/data/c770d1ad7/c7c59c7957b64cafac76d282f53ec657/FLAG91e29bfdc [2020-11-28 03:20:31,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/data/c770d1ad7/c7c59c7957b64cafac76d282f53ec657 [2020-11-28 03:20:31,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:31,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:31,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:31,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:31,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:31,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a5c1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31, skipping insertion in model container [2020-11-28 03:20:31,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:31,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:31,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:31,419 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:31,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:31,471 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:31,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31 WrapperNode [2020-11-28 03:20:31,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:31,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:31,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:31,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:31,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:31,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:31,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:31,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:31,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... [2020-11-28 03:20:31,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:31,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:31,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:31,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:31,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/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 [2020-11-28 03:20:31,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:31,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:31,781 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:31,782 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:20:31,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:31 BoogieIcfgContainer [2020-11-28 03:20:31,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:31,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:20:31,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:20:31,792 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:20:31,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:31,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:20:31" (1/3) ... [2020-11-28 03:20:31,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5204f5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:31, skipping insertion in model container [2020-11-28 03:20:31,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:31,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:31" (2/3) ... [2020-11-28 03:20:31,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5204f5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:31, skipping insertion in model container [2020-11-28 03:20:31,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:31,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:31" (3/3) ... [2020-11-28 03:20:31,797 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaC7.c [2020-11-28 03:20:31,867 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:20:31,867 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:20:31,867 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:20:31,867 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:31,867 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:31,868 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:20:31,868 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:31,868 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:20:31,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-28 03:20:31,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:20:31,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:31,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:31,904 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:20:31,904 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:20:31,904 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:20:31,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-28 03:20:31,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:20:31,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:31,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:31,907 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:20:31,907 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:20:31,914 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~i~0, main_~j~0, main_~k~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L14-2true [2020-11-28 03:20:31,914 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~i~0 <= 100 && main_~j~0 < main_~k~0);main_~i~0 := main_~j~0;main_~j~0 := 1 + main_~i~0;main_~k~0 := main_~k~0 - 1; 5#L14-2true [2020-11-28 03:20:31,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:31,922 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-28 03:20:31,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:31,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673014857] [2020-11-28 03:20:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,051 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:32,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:32,056 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-28 03:20:32,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:32,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127053262] [2020-11-28 03:20:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,096 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:32,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:32,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-28 03:20:32,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:32,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465133550] [2020-11-28 03:20:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:32,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:32,142 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:32,271 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-28 03:20:32,344 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:32,345 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:32,345 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:32,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:32,345 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:20:32,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:32,346 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:32,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:32,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC7.c_Iteration1_Loop [2020-11-28 03:20:32,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:32,346 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:32,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:32,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:32,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:32,496 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:32,500 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:20:32,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:20:32,508 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 [2020-11-28 03:20:32,517 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:20:32,517 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 /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/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 [2020-11-28 03:20:32,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:20:32,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:20:32,574 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:20:32,574 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 /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/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 [2020-11-28 03:20:32,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:20:32,605 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:20:32,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:20:32,663 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:44,727 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-11-28 03:20:44,731 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:44,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:44,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:44,732 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:44,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:44,732 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:44,732 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:44,732 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:44,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC7.c_Iteration1_Loop [2020-11-28 03:20:44,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:44,733 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:44,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,908 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:44,912 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/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 [2020-11-28 03:20:44,918 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 [2020-11-28 03:20:44,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:44,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:44,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:44,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:44,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:44,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:44,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/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 [2020-11-28 03:20:44,962 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 [2020-11-28 03:20:44,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:44,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:44,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:44,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:44,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:44,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:44,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,007 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 [2020-11-28 03:20:45,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:45,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:45,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:45,020 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:45,031 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:20:45,032 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e544ca60-904b-4cb6-8a53-589f08f950e9/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,036 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:20:45,036 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:20:45,036 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:45,037 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~k~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-11-28 03:20:45,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:20:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:45,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:45,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:45,146 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:45,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:45,160 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 [2020-11-28 03:20:45,161 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-11-28 03:20:45,222 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. [2020-11-28 03:20:45,223 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 [2020-11-28 03:20:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-28 03:20:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-11-28 03:20:45,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-28 03:20:45,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:45,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-28 03:20:45,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:45,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-28 03:20:45,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:45,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-11-28 03:20:45,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:45,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-11-28 03:20:45,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:20:45,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:20:45,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:20:45,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:20:45,255 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:45,255 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:45,255 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:45,256 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:20:45,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:20:45,256 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:45,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:20:45,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:20:45 BoogieIcfgContainer [2020-11-28 03:20:45,262 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:20:45,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:45,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:45,263 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:45,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:31" (3/4) ... [2020-11-28 03:20:45,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:20:45,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:45,268 INFO L168 Benchmark]: Toolchain (without parser) took 14063.99 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 63.4 MB in the beginning and 68.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:45,269 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:45,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.15 ms. Allocated memory is still 98.6 MB. Free memory was 63.3 MB in the beginning and 75.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:45,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.12 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 74.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:45,271 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 73.3 MB in the end (delta: 965.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:45,272 INFO L168 Benchmark]: RCFGBuilder took 252.05 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 65.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:45,274 INFO L168 Benchmark]: BuchiAutomizer took 13476.36 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 68.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:45,274 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 119.5 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:45,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 71.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.15 ms. Allocated memory is still 98.6 MB. Free memory was 63.3 MB in the beginning and 75.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.12 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 74.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 73.3 MB in the end (delta: 965.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 252.05 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 65.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13476.36 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 68.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.00 ms. Allocated memory is still 119.5 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 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 k + -1 * j and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.1s. 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, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...