./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.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 9448a6696b4991e038dda55623feb6ffc9366da0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:17:02,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:17:02,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:17:02,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:17:02,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:17:02,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:17:02,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:17:02,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:17:03,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:17:03,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:17:03,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:17:03,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:17:03,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:17:03,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:17:03,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:17:03,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:17:03,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:17:03,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:17:03,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:17:03,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:17:03,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:17:03,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:17:03,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:17:03,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:17:03,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:17:03,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:17:03,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:17:03,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:17:03,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:17:03,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:17:03,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:17:03,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:17:03,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:17:03,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:17:03,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:17:03,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:17:03,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:17:03,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:17:03,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:17:03,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:17:03,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:17:03,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:17:03,085 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:17:03,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:17:03,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:17:03,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:17:03,091 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:17:03,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:17:03,091 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:17:03,091 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:17:03,092 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:17:03,092 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:17:03,092 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:17:03,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:17:03,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:17:03,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:17:03,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:17:03,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:17:03,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:17:03,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:17:03,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:17:03,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:17:03,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:17:03,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:17:03,095 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:17:03,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:17:03,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:17:03,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:17:03,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:17:03,096 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:17:03,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:17:03,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:17:03,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:17:03,097 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:17:03,098 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:17:03,098 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 -> 9448a6696b4991e038dda55623feb6ffc9366da0 [2019-11-28 21:17:03,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:17:03,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:17:03,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:17:03,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:17:03,402 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:17:03,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2019-11-28 21:17:03,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0352179/719d40684df0418c90ffab92343b50ec/FLAG53c1d0c97 [2019-11-28 21:17:03,950 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:17:03,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2019-11-28 21:17:03,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0352179/719d40684df0418c90ffab92343b50ec/FLAG53c1d0c97 [2019-11-28 21:17:04,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0352179/719d40684df0418c90ffab92343b50ec [2019-11-28 21:17:04,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:17:04,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:17:04,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:17:04,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:17:04,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:17:04,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d0afd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04, skipping insertion in model container [2019-11-28 21:17:04,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:17:04,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:17:04,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:17:04,564 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:17:04,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:17:04,601 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:17:04,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04 WrapperNode [2019-11-28 21:17:04,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:17:04,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:17:04,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:17:04,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:17:04,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:17:04,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:17:04,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:17:04,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:17:04,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (1/1) ... [2019-11-28 21:17:04,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:17:04,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:17:04,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:17:04,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:17:04,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (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 [2019-11-28 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2019-11-28 21:17:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2019-11-28 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:17:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-28 21:17:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-28 21:17:04,928 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:17:04,929 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 21:17:04,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:17:04 BoogieIcfgContainer [2019-11-28 21:17:04,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:17:04,931 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:17:04,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:17:04,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:17:04,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:17:04,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:17:04" (1/3) ... [2019-11-28 21:17:04,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7712edcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:17:04, skipping insertion in model container [2019-11-28 21:17:04,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:17:04,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:17:04" (2/3) ... [2019-11-28 21:17:04,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7712edcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:17:04, skipping insertion in model container [2019-11-28 21:17:04,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:17:04,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:17:04" (3/3) ... [2019-11-28 21:17:04,945 INFO L371 chiAutomizerObserver]: Analyzing ICFG id2_i5_o5-2.c [2019-11-28 21:17:05,049 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:17:05,050 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:17:05,050 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:17:05,050 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:17:05,050 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:17:05,051 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:17:05,051 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:17:05,051 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:17:05,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-11-28 21:17:05,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 21:17:05,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:17:05,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:17:05,100 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 21:17:05,100 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:17:05,101 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:17:05,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-11-28 21:17:05,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 21:17:05,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:17:05,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:17:05,104 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 21:17:05,104 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:17:05,110 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret2, main_~input~0, main_~result~0;main_~input~0 := 5; 11#L19true call main_#t~ret2 := id(main_~input~0);< 20#idENTRYtrue [2019-11-28 21:17:05,111 INFO L796 eck$LassoCheckResult]: Loop: 20#idENTRYtrue ~x := #in~x; 14#L8true assume !(0 == ~x); 13#L9true call #t~ret0 := id2(~x - 1);< 10#id2ENTRYtrue ~x := #in~x; 8#L13true assume !(0 == ~x); 5#L14true call #t~ret1 := id(~x - 1);< 20#idENTRYtrue [2019-11-28 21:17:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:17:05,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1272, now seen corresponding path program 1 times [2019-11-28 21:17:05,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:17:05,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720329339] [2019-11-28 21:17:05,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:17:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,209 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:17:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:17:05,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1542369597, now seen corresponding path program 1 times [2019-11-28 21:17:05,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:17:05,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832173937] [2019-11-28 21:17:05,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:17:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,230 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:17:05,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:17:05,232 INFO L82 PathProgramCache]: Analyzing trace with hash -16850700, now seen corresponding path program 1 times [2019-11-28 21:17:05,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:17:05,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572009699] [2019-11-28 21:17:05,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:17:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:17:05,252 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:17:05,422 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 21:17:05,422 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 21:17:05,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 21:17:05,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 21:17:05,423 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 21:17:05,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 21:17:05,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 21:17:05,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Loop [2019-11-28 21:17:05,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 21:17:05,424 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 21:17:05,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,612 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 21:17:05,614 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:05,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,630 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,640 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:05,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,657 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 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 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 [2019-11-28 21:17:05,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 21:17:05,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:05,737 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,737 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-7} Honda state: {id_#in~x=-7} Generalized eigenvectors: [{id_#in~x=0}, {id_#in~x=-2}, {id_#in~x=0}] Lambdas: [14, 1, 9] Nus: [0, 1] 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) [2019-11-28 21:17:05,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,752 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 [2019-11-28 21:17:05,756 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,757 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_~x=0} Honda state: {id2_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-28 21:17:05,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,771 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 [2019-11-28 21:17:05,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:05,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,798 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#in~x=0} Honda state: {id2_#in~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:05,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,818 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#t~ret1=0} Honda state: {id2_#t~ret1=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) [2019-11-28 21:17:05,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,845 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,850 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,850 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:05,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:05,870 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,875 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:05,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#res=0} Honda state: {id2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-28 21:17:05,912 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 21:17:05,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 21:17:05,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 21:17:05,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 21:17:05,913 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 21:17:05,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:05,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 21:17:05,914 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 21:17:05,914 INFO L133 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Lasso [2019-11-28 21:17:05,914 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 21:17:05,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 21:17:05,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:05,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,114 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 21:17:06,114 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2019-11-28 21:17:06,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:06,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:06,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:06,129 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#in~x=0} Honda state: {id2_#in~x=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 [2019-11-28 21:17:06,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:06,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:06,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:06,145 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:06,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:06,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:06,163 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#t~ret1=0} Honda state: {id2_#t~ret1=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 [2019-11-28 21:17:06,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:06,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:06,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 21:17:06,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~input~0=0} Honda state: {ULTIMATE.start_main_~input~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 [2019-11-28 21:17:06,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 21:17:06,201 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 21:17:06,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 21:17:06,246 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 21:17:06,248 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 21:17:06,249 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 21:17:06,249 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 21:17:06,249 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 21:17:06,249 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 21:17:06,249 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,250 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 21:17:06,250 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 21:17:06,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Lasso [2019-11-28 21:17:06,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 21:17:06,250 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 21:17:06,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:17:06,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 21:17:06,420 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:06,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:17:06,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:17:06,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:17:06,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:17:06,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:17:06,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:17:06,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:17:06,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:06,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:17:06,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:17:06,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:17:06,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:17:06,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:17:06,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:17:06,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:17:06,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:17:06,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:17:06,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:17:06,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:17:06,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:17:06,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:17:06,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:17:06,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:17:06,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:17:06,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:17:06,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:17:06,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:17:06,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:17:06,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:17:06,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:17:06,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:17:06,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:17:06,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:17:06,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:17:06,525 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 21:17:06,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:17:06,537 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 21:17:06,537 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 21:17:06,558 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 21:17:06,608 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-28 21:17:06,608 INFO L444 ModelExtractionUtils]: 0 out of 11 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:17:06,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:17:06,624 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-28 21:17:06,624 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 21:17:06,625 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2019-11-28 21:17:06,638 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 21:17:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:17:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:17:06,701 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 21:17:06,704 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:17:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:17:06,754 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 21:17:06,757 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:17:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:17:06,928 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2019-11-28 21:17:06,930 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 8 states. [2019-11-28 21:17:07,274 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 8 states. Result 54 states and 61 transitions. Complement of second has 23 states. [2019-11-28 21:17:07,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-28 21:17:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 21:17:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2019-11-28 21:17:07,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-28 21:17:07,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:17:07,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 8 letters. Loop has 6 letters. [2019-11-28 21:17:07,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:17:07,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 2 letters. Loop has 12 letters. [2019-11-28 21:17:07,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:17:07,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2019-11-28 21:17:07,302 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 21:17:07,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2019-11-28 21:17:07,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 21:17:07,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 21:17:07,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 21:17:07,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:17:07,310 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:17:07,310 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:17:07,310 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:17:07,310 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:17:07,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 21:17:07,311 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 21:17:07,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 21:17:07,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:17:07 BoogieIcfgContainer [2019-11-28 21:17:07,320 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:17:07,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:17:07,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:17:07,322 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:17:07,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:17:04" (3/4) ... [2019-11-28 21:17:07,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 21:17:07,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:17:07,332 INFO L168 Benchmark]: Toolchain (without parser) took 2969.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 961.7 MB in the beginning and 798.5 MB in the end (delta: 163.3 MB). Peak memory consumption was 287.5 MB. Max. memory is 11.5 GB. [2019-11-28 21:17:07,333 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-28 21:17:07,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.00 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. [2019-11-28 21:17:07,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:17:07,341 INFO L168 Benchmark]: Boogie Preprocessor took 15.18 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. [2019-11-28 21:17:07,342 INFO L168 Benchmark]: RCFGBuilder took 223.55 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:17:07,342 INFO L168 Benchmark]: BuchiAutomizer took 2389.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 798.5 MB in the end (delta: 303.3 MB). Peak memory consumption was 303.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:17:07,343 INFO L168 Benchmark]: Witness Printer took 6.64 ms. Allocated memory is still 1.2 GB. Free memory is still 798.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:17:07,356 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 242.00 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 86.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.18 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 223.55 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2389.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 798.5 MB in the end (delta: 303.3 MB). Peak memory consumption was 303.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.64 ms. Allocated memory is still 1.2 GB. Free memory is still 798.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 18 SDslu, 16 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq201 hnf97 smp100 dnf250 smp42 tf101 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 114ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...