./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/for_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa73ad1a0f138950efa961688e68ed3fdb6cd647 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:25:10,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:25:10,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:25:10,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:25:10,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:25:10,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:25:10,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:25:10,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:25:10,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:25:10,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:25:10,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:25:10,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:25:10,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:25:10,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:25:10,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:25:10,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:25:10,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:25:10,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:25:10,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:25:10,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:25:10,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:25:10,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:25:10,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:25:10,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:25:10,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:25:10,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:25:10,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:25:10,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:25:10,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:25:10,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:25:10,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:25:10,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:25:10,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:25:10,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:25:10,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:25:10,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:25:10,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:25:10,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:25:10,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:25:10,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:25:10,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:25:10,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:25:10,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:25:10,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:25:10,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:25:10,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:25:10,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:25:10,977 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:25:10,978 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:25:10,978 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:25:10,978 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:25:10,978 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:25:10,979 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:25:10,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:25:10,979 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:25:10,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:25:10,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:25:10,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:25:10,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:25:10,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:25:10,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:25:10,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:25:10,982 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:25:10,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:25:10,982 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:25:10,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:25:10,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:25:10,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:25:10,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:25:10,984 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:25:10,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:25:10,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:25:10,985 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:25:10,986 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:25:10,986 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa73ad1a0f138950efa961688e68ed3fdb6cd647 [2019-11-19 22:25:11,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:25:11,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:25:11,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:25:11,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:25:11,317 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:25:11,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-11-19 22:25:11,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1fcc3bc8/b4cefa1e1fc844d99d0b2f267b03ee54/FLAG81aca567f [2019-11-19 22:25:11,869 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:25:11,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-11-19 22:25:11,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1fcc3bc8/b4cefa1e1fc844d99d0b2f267b03ee54/FLAG81aca567f [2019-11-19 22:25:12,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1fcc3bc8/b4cefa1e1fc844d99d0b2f267b03ee54 [2019-11-19 22:25:12,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:25:12,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:25:12,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:25:12,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:25:12,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:25:12,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71caa380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12, skipping insertion in model container [2019-11-19 22:25:12,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,318 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:25:12,341 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:25:12,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:25:12,542 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:25:12,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:25:12,567 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:25:12,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12 WrapperNode [2019-11-19 22:25:12,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:25:12,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:25:12,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:25:12,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:25:12,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:25:12,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:25:12,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:25:12,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:25:12,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... [2019-11-19 22:25:12,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:25:12,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:25:12,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:25:12,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:25:12,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:25:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:25:12,901 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:25:12,902 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 22:25:12,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:12 BoogieIcfgContainer [2019-11-19 22:25:12,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:25:12,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:25:12,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:25:12,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:25:12,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:12,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:25:12" (1/3) ... [2019-11-19 22:25:12,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@381fa639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:25:12, skipping insertion in model container [2019-11-19 22:25:12,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:12,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:12" (2/3) ... [2019-11-19 22:25:12,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@381fa639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:25:12, skipping insertion in model container [2019-11-19 22:25:12,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:12,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:12" (3/3) ... [2019-11-19 22:25:12,912 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1.c [2019-11-19 22:25:12,957 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:25:12,957 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:25:12,957 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:25:12,957 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:25:12,958 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:25:12,958 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:25:12,958 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:25:12,958 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:25:12,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-19 22:25:12,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:25:12,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:12,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:12,996 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:25:12,996 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 22:25:12,996 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:25:12,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-19 22:25:12,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:25:12,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:12,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:12,999 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:25:12,999 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 22:25:13,005 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L17true assume !!(main_~n~0 > 0);main_~i~0 := 0; 8#L18-2true [2019-11-19 22:25:13,006 INFO L796 eck$LassoCheckResult]: Loop: 8#L18-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L5true assume !(0 == __VERIFIER_assert_~cond); 14#L5-2true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 8#L18-2true [2019-11-19 22:25:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:13,011 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-19 22:25:13,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:13,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548793968] [2019-11-19 22:25:13,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,127 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:13,129 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-11-19 22:25:13,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:13,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893310231] [2019-11-19 22:25:13,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-11-19 22:25:13,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:13,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441898928] [2019-11-19 22:25:13,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:13,174 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:13,230 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:13,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:13,233 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:13,233 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:13,233 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:25:13,233 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,234 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:13,234 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:13,234 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Loop [2019-11-19 22:25:13,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:13,235 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:13,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,491 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:13,492 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 [2019-11-19 22:25:13,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,515 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,515 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,545 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,545 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,561 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:25:13,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,602 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,602 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-11-19 22:25:13,640 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:13,640 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:13,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:13,640 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:13,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:25:13,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:13,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:13,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Lasso [2019-11-19 22:25:13,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:13,641 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:13,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:13,839 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:13,839 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,847 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2019-11-19 22:25:13,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:25:13,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,885 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,886 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,927 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:13,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,946 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:13,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,965 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:13,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:13,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:13,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:14,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:14,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-19 22:25:14,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:14,016 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:14,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:14,020 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-19 22:25:14,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:25:14 BoogieIcfgContainer [2019-11-19 22:25:14,055 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:25:14,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:25:14,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:25:14,056 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:25:14,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:12" (3/4) ... [2019-11-19 22:25:14,061 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:25:14,110 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:25:14,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:25:14,113 INFO L168 Benchmark]: Toolchain (without parser) took 1812.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 961.7 MB in the beginning and 981.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 116.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:14,117 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:14,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.66 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:14,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:14,119 INFO L168 Benchmark]: Boogie Preprocessor took 20.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:14,120 INFO L168 Benchmark]: RCFGBuilder took 222.96 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:14,122 INFO L168 Benchmark]: BuchiAutomizer took 1151.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.0 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:14,123 INFO L168 Benchmark]: Witness Printer took 55.13 ms. Allocated memory is still 1.2 GB. Free memory is still 981.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:14,133 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.66 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 90.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.96 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1151.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.0 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.13 ms. Allocated memory is still 1.2 GB. Free memory is still 981.0 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite144 ukn100 eq199 hnf92 smp49 dnf95 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a42d32e=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4caae52e=0, x=0, n=0, y=0, i=0} State at position 1 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a42d32e=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4caae52e=0, x=0, n=1, y=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a42d32e=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4caae52e=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 0, n=1 + sum_{k=0}^i 0, y=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i 1 + 2 + -2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] unsigned int i=0; [L15] int x=0, y=0; [L16] int n=__VERIFIER_nondet_int(); [L17] COND FALSE !(!(n>0)) [L18] i=0 Loop: [L18] COND TRUE 1 [L5] COND FALSE !(!(cond)) [L18] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...