./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/for_infinite_loop_2.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/for_infinite_loop_2.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 be470ba884758fc02b2454b21fee2ccc80815839 .................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-29 02:04:58,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:04:58,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:04:58,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:04:58,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:04:58,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:04:58,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:04:58,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:04:58,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:04:58,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:04:58,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:04:58,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:04:58,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:04:58,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:04:58,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:04:58,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:04:58,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:04:58,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:04:58,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:04:58,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:04:58,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:04:58,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:04:58,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:04:58,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:04:58,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:04:58,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:04:58,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:04:58,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:04:58,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:04:58,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:04:58,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:04:58,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:04:58,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:04:58,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:04:58,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:04:58,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:04:58,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:04:58,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:04:58,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:04:58,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:04:58,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:04:58,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:04:58,745 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:04:58,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:04:58,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:04:58,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:04:58,748 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:04:58,748 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:04:58,748 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:04:58,748 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:04:58,749 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:04:58,749 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:04:58,749 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:04:58,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:04:58,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:04:58,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:04:58,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:04:58,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:04:58,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:04:58,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:04:58,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:04:58,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:04:58,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:04:58,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:04:58,753 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:04:58,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:04:58,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:04:58,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:04:58,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:04:58,754 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:04:58,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:04:58,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:04:58,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:04:58,755 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:04:58,756 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:04:58,757 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 -> be470ba884758fc02b2454b21fee2ccc80815839 [2020-07-29 02:04:59,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:04:59,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:04:59,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:04:59,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:04:59,094 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:04:59,094 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_infinite_loop_2.c [2020-07-29 02:04:59,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5acee5/db197e0eb69e4a3b879eceb3429d3959/FLAG83fa39920 [2020-07-29 02:04:59,570 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:04:59,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_infinite_loop_2.c [2020-07-29 02:04:59,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5acee5/db197e0eb69e4a3b879eceb3429d3959/FLAG83fa39920 [2020-07-29 02:04:59,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c5acee5/db197e0eb69e4a3b879eceb3429d3959 [2020-07-29 02:04:59,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:04:59,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:04:59,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:04:59,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:04:59,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:04:59,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:04:59" (1/1) ... [2020-07-29 02:04:59,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ebfc50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:59, skipping insertion in model container [2020-07-29 02:04:59,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:04:59" (1/1) ... [2020-07-29 02:04:59,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:05:00,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:05:00,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:05:00,198 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:05:00,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:05:00,235 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:05:00,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00 WrapperNode [2020-07-29 02:05:00,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:05:00,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:05:00,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:05:00,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:05:00,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:05:00,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:05:00,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:05:00,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:05:00,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... [2020-07-29 02:05:00,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:05:00,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:05:00,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:05:00,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:05:00,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:05:00,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:05:00,755 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:05:00,756 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-29 02:05:00,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:05:00 BoogieIcfgContainer [2020-07-29 02:05:00,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:05:00,763 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:05:00,764 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:05:00,771 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:05:00,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:05:00,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:04:59" (1/3) ... [2020-07-29 02:05:00,775 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7648d4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:05:00, skipping insertion in model container [2020-07-29 02:05:00,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:05:00,776 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:05:00" (2/3) ... [2020-07-29 02:05:00,777 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7648d4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:05:00, skipping insertion in model container [2020-07-29 02:05:00,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:05:00,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:05:00" (3/3) ... [2020-07-29 02:05:00,780 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_2.c [2020-07-29 02:05:00,899 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:05:00,899 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:05:00,899 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:05:00,900 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:05:00,900 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:05:00,900 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:05:00,900 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:05:00,900 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:05:00,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-07-29 02:05:00,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-29 02:05:00,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:05:00,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:05:00,956 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 02:05:00,957 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 02:05:00,957 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:05:00,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-07-29 02:05:00,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-29 02:05:00,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:05:00,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:05:00,962 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 02:05:00,962 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 02:05:00,972 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 14#L20true assume !!(main_~n~0 > 0);main_~i~0 := 0; 11#L21-2true [2020-07-29 02:05:00,972 INFO L796 eck$LassoCheckResult]: Loop: 11#L21-2true 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; 8#L8true assume !(0 == __VERIFIER_assert_~cond); 5#L8-2true main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1; 11#L21-2true [2020-07-29 02:05:00,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:05:00,980 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2020-07-29 02:05:00,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:05:00,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908290968] [2020-07-29 02:05:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:05:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:05:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:05:01,126 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2020-07-29 02:05:01,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:05:01,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287711465] [2020-07-29 02:05:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:05:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,151 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:05:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:05:01,154 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2020-07-29 02:05:01,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:05:01,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702037958] [2020-07-29 02:05:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:05:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:05:01,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:05:01,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:05:01,310 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:05:01,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:05:01,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:05:01,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:05:01,312 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:05:01,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:01,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:05:01,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:05:01,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2.c_Iteration1_Loop [2020-07-29 02:05:01,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:05:01,313 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:05:01,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,561 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:05:01,562 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:05:01,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:01,577 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 [2020-07-29 02:05:01,590 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:01,590 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:01,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:01,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:01,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:01,651 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:05:01,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:01,687 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:05:01,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:05:01,740 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 [2020-07-29 02:05:01,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:01,762 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=4}, {ULTIMATE.start_main_~i~0=4}, {ULTIMATE.start_main_~i~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:05:01,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:01,806 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:01,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:01,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-29 02:05:01,903 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:05:01,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:05:01,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:05:01,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:05:01,905 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:05:01,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:01,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:05:01,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:05:01,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2.c_Iteration1_Lasso [2020-07-29 02:05:01,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:05:01,906 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:05:01,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:01,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:05:02,233 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:05:02,234 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,272 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:05:02,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:05:02,301 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,317 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=4}, {ULTIMATE.start_main_~i~0=4}, {ULTIMATE.start_main_~i~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,361 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,404 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,404 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 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 [2020-07-29 02:05:02,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,443 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,444 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:05:02,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:05:02,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:05:02,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:05:02,547 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: [] [2020-07-29 02:05:02,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:05:02 BoogieIcfgContainer [2020-07-29 02:05:02,613 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:05:02,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:05:02,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:05:02,614 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:05:02,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:05:00" (3/4) ... [2020-07-29 02:05:02,619 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:05:02,669 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:05:02,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:05:02,673 INFO L168 Benchmark]: Toolchain (without parser) took 2697.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 950.8 MB in the beginning and 961.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:05:02,674 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:05:02,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.33 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:05:02,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:05:02,677 INFO L168 Benchmark]: Boogie Preprocessor took 148.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:05:02,678 INFO L168 Benchmark]: RCFGBuilder took 333.55 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:05:02,679 INFO L168 Benchmark]: BuchiAutomizer took 1849.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.1 MB in the end (delta: 172.7 MB). Peak memory consumption was 172.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:05:02,679 INFO L168 Benchmark]: Witness Printer took 56.33 ms. Allocated memory is still 1.2 GB. Free memory is still 961.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:05:02,683 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.33 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 148.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -205.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 333.55 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1849.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.1 MB in the end (delta: 172.7 MB). Peak memory consumption was 172.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.33 ms. Allocated memory is still 1.2 GB. Free memory is still 961.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: inital22 mio100 ax100 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bd4356c=0, \result=0, \old(cond)=1, x=0, n=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@25a07386=0, i=0} State at position 1 is {cond=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bd4356c=0, \result=0, \old(cond)=1, x=0, n=1, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@25a07386=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bd4356c=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, \old(cond)=1 + 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@25a07386=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i 4 + 4 + -7} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] unsigned int i=0; [L18] int x=0, y=0; [L19] int n=__VERIFIER_nondet_int(); [L20] COND FALSE !(!(n>0)) [L21] i=0 Loop: [L21] COND TRUE 1 [L8] COND FALSE !(!(cond)) [L21] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...