./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9448a6696b4991e038dda55623feb6ffc9366da0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:26,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:26,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:26,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:26,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:26,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:26,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:26,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:26,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:26,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:26,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:26,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:26,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:26,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:26,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:26,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:26,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:26,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:26,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:26,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:26,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:26,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:26,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:26,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:26,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:26,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:26,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:26,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:26,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:26,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:26,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:26,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:26,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:26,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:26,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:26,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:26,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:26,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:26,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:26,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:26,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:26,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:58:26,727 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:26,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:26,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:26,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:26,733 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:26,733 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:26,733 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:26,733 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:26,734 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:26,734 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:26,734 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:26,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:26,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:26,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:26,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:26,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:26,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:26,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:26,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:26,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:26,736 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:26,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:26,737 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:26,737 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:26,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:26,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:26,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:26,738 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:26,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:26,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:26,739 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:26,740 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:26,740 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9448a6696b4991e038dda55623feb6ffc9366da0 [2019-10-22 08:58:26,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:26,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:26,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:26,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:26,822 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:26,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2019-10-22 08:58:26,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/data/af94aa7ec/5e43cc277ced49378232bb0aac642aee/FLAG1ed04d2a4 [2019-10-22 08:58:27,247 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:27,248 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2019-10-22 08:58:27,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/data/af94aa7ec/5e43cc277ced49378232bb0aac642aee/FLAG1ed04d2a4 [2019-10-22 08:58:27,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/data/af94aa7ec/5e43cc277ced49378232bb0aac642aee [2019-10-22 08:58:27,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:27,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:27,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:27,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:27,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:27,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:27" (1/1) ... [2019-10-22 08:58:27,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2d34ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:27, skipping insertion in model container [2019-10-22 08:58:27,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:27" (1/1) ... [2019-10-22 08:58:27,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:27,749 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:27,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:27,920 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:28,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:28,024 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:28,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28 WrapperNode [2019-10-22 08:58:28,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:28,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:28,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:28,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:28,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:28,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:28,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:28,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:28,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... [2019-10-22 08:58:28,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:28,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:28,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:28,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:28,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2019-10-22 08:58:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2019-10-22 08:58:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-10-22 08:58:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-10-22 08:58:28,397 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:28,397 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:28,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:28 BoogieIcfgContainer [2019-10-22 08:58:28,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:28,400 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:28,400 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:28,404 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:28,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:28,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:27" (1/3) ... [2019-10-22 08:58:28,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e6b9f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:28, skipping insertion in model container [2019-10-22 08:58:28,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:28,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:28" (2/3) ... [2019-10-22 08:58:28,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e6b9f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:28, skipping insertion in model container [2019-10-22 08:58:28,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:28,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:28" (3/3) ... [2019-10-22 08:58:28,419 INFO L371 chiAutomizerObserver]: Analyzing ICFG id2_i5_o5-2.c [2019-10-22 08:58:28,518 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:28,519 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:28,519 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:28,519 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:28,519 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:28,519 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:28,519 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:28,519 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:28,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-10-22 08:58:28,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:58:28,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:28,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:28,571 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:58:28,571 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,572 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:28,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-10-22 08:58:28,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:58:28,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:28,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:28,574 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:58:28,574 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,583 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret2, main_~input~0, main_~result~0;main_~input~0 := 5; 11#L19true call main_#t~ret2 := id(main_~input~0);< 20#idENTRYtrue [2019-10-22 08:58:28,583 INFO L793 eck$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 [2019-10-22 08:58:28,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1272, now seen corresponding path program 1 times [2019-10-22 08:58:28,598 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753812714] [2019-10-22 08:58:28,599 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,599 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,705 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1542369597, now seen corresponding path program 1 times [2019-10-22 08:58:28,706 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347897148] [2019-10-22 08:58:28,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,728 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:28,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,733 INFO L82 PathProgramCache]: Analyzing trace with hash -16850700, now seen corresponding path program 1 times [2019-10-22 08:58:28,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306255984] [2019-10-22 08:58:28,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:28,758 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:28,922 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:28,922 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:28,923 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:28,923 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:28,923 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:28,923 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:28,923 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:28,923 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:28,924 INFO L131 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Loop [2019-10-22 08:58:28,924 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:28,924 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:28,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:28,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,231 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:29,232 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,243 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 [2019-10-22 08:58:29,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,254 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,266 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:29,291 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 [2019-10-22 08:58:29,356 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,357 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:29,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,374 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:29,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,391 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,407 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 [2019-10-22 08:58:29,413 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,413 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,423 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 [2019-10-22 08:58:29,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,430 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,439 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 [2019-10-22 08:58:29,444 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,444 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:29,461 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id2_#res=0} Honda state: {id2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-10-22 08:58:29,498 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:29,499 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:29,499 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:29,499 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:29,499 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:29,499 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,499 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:29,499 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:29,500 INFO L131 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Lasso [2019-10-22 08:58:29,500 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:29,500 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:29,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,639 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:29,639 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/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 [2019-10-22 08:58:29,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:29,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,658 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,667 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,673 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,673 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,684 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,687 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,700 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:29,706 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 /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:29,719 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ee8f575-7e6d-459e-908f-7bdcdeabab22/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:58:29,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:29,739 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,769 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:29,771 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:29,771 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:29,771 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:29,771 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:29,771 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:29,772 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:29,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:29,772 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:29,772 INFO L131 ssoRankerPreferences]: Filename of dumped script: id2_i5_o5-2.c_Iteration1_Lasso [2019-10-22 08:58:29,772 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:29,772 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:29,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:29,921 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:29,926 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:29,928 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 [2019-10-22 08:58:29,930 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:29,930 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:29,931 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:29,931 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:29,931 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:29,934 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:29,934 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:29,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:29,938 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 [2019-10-22 08:58:29,939 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:29,939 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:29,939 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:29,940 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:29,940 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:29,940 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:29,940 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:29,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:29,942 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 [2019-10-22 08:58:29,943 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:29,943 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:29,943 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:29,943 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:29,944 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:29,944 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:29,944 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:29,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:29,946 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 [2019-10-22 08:58:29,947 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:29,947 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:29,948 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:29,948 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:29,948 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:29,948 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:29,948 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:29,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:29,950 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 [2019-10-22 08:58:29,951 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:29,951 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:29,951 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-10-22 08:58:29,951 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:29,959 INFO L400 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-10-22 08:58:29,959 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:58:30,093 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:30,185 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-10-22 08:58:30,186 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 3 variables to zero. [2019-10-22 08:58:30,188 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:30,193 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-10-22 08:58:30,193 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:30,194 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2019-10-22 08:58:30,199 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-10-22 08:58:30,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:58:30,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:30,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-22 08:58:30,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:30,472 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 [2019-10-22 08:58:30,474 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 8 states. [2019-10-22 08:58:30,865 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. [2019-10-22 08:58:30,866 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 [2019-10-22 08:58:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:58:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2019-10-22 08:58:30,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2019-10-22 08:58:30,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:30,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 8 letters. Loop has 6 letters. [2019-10-22 08:58:30,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:30,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 2 letters. Loop has 12 letters. [2019-10-22 08:58:30,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:30,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2019-10-22 08:58:30,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:30,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2019-10-22 08:58:30,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:58:30,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:58:30,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:58:30,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:30,884 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:30,884 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:30,884 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:30,884 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:30,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:30,884 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:30,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:58:30,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:30 BoogieIcfgContainer [2019-10-22 08:58:30,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:30,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:30,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:30,890 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:30,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:28" (3/4) ... [2019-10-22 08:58:30,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:30,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:30,895 INFO L168 Benchmark]: Toolchain (without parser) took 3178.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:30,895 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:30,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:30,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.48 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. [2019-10-22 08:58:30,896 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 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. [2019-10-22 08:58:30,897 INFO L168 Benchmark]: RCFGBuilder took 315.10 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:30,897 INFO L168 Benchmark]: BuchiAutomizer took 2489.70 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: -8.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:30,901 INFO L168 Benchmark]: Witness Printer took 3.53 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. [2019-10-22 08:58:30,904 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -192.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.48 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. * Boogie Preprocessor took 22.20 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 315.10 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2489.70 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: -8.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.53 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. * 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 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. 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, 0.1s 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: 242ms 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...