./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-2.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/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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 a06ba721ade3e36e091d6046e7f548a6b0c91e10 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:36:33,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:36:33,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:36:33,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:36:33,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:36:33,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:36:33,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:36:33,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:36:33,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:36:33,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:36:33,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:36:33,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:36:33,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:36:33,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:36:33,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:36:33,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:36:33,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:36:33,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:36:33,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:36:33,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:36:33,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:36:33,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:36:33,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:36:33,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:36:33,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:36:33,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:36:33,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:36:33,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:36:33,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:36:33,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:36:33,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:36:33,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:36:33,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:36:33,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:36:33,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:36:33,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:36:33,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:36:33,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:36:33,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:36:33,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:36:33,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:36:33,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 23:36:33,709 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:36:33,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:36:33,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:36:33,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:36:33,711 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:36:33,711 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:36:33,711 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:36:33,712 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:36:33,712 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:36:33,712 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:36:33,712 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:36:33,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:36:33,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:36:33,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:36:33,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:36:33,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:36:33,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:36:33,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:36:33,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:36:33,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:36:33,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:36:33,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:36:33,715 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:36:33,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:36:33,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:36:33,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:36:33,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:36:33,716 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:36:33,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:36:33,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:36:33,717 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:36:33,718 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:36:33,718 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/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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 -> a06ba721ade3e36e091d6046e7f548a6b0c91e10 [2019-11-15 23:36:33,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:36:33,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:36:33,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:36:33,755 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:36:33,755 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:36:33,756 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-2.c [2019-11-15 23:36:33,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/data/fc60b7ac7/5d4513bd83a84876b94a9ca267112a90/FLAG2f88e13be [2019-11-15 23:36:34,213 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:36:34,214 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/sv-benchmarks/c/loops/terminator_02-2.c [2019-11-15 23:36:34,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/data/fc60b7ac7/5d4513bd83a84876b94a9ca267112a90/FLAG2f88e13be [2019-11-15 23:36:34,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/data/fc60b7ac7/5d4513bd83a84876b94a9ca267112a90 [2019-11-15 23:36:34,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:36:34,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:36:34,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:36:34,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:36:34,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:36:34,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439860f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34, skipping insertion in model container [2019-11-15 23:36:34,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,253 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:36:34,269 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:36:34,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:36:34,512 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:36:34,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:36:34,548 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:36:34,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34 WrapperNode [2019-11-15 23:36:34,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:36:34,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:36:34,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:36:34,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:36:34,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:36:34,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:36:34,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:36:34,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:36:34,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... [2019-11-15 23:36:34,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:36:34,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:36:34,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:36:34,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:36:34,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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 [2019-11-15 23:36:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:36:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:36:34,841 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:36:34,842 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 23:36:34,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:34 BoogieIcfgContainer [2019-11-15 23:36:34,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:36:34,844 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:36:34,844 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:36:34,847 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:36:34,847 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:34,847 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:36:34" (1/3) ... [2019-11-15 23:36:34,848 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4909f0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:36:34, skipping insertion in model container [2019-11-15 23:36:34,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:34,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:36:34" (2/3) ... [2019-11-15 23:36:34,849 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4909f0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:36:34, skipping insertion in model container [2019-11-15 23:36:34,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:36:34,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:34" (3/3) ... [2019-11-15 23:36:34,850 INFO L371 chiAutomizerObserver]: Analyzing ICFG terminator_02-2.c [2019-11-15 23:36:34,905 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:36:34,905 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:36:34,905 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:36:34,906 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:36:34,906 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:36:34,906 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:36:34,906 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:36:34,906 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:36:34,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 23:36:34,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:34,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:34,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:34,941 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 23:36:34,941 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:36:34,941 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:36:34,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-15 23:36:34,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:34,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:34,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:34,943 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 23:36:34,943 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:36:34,948 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2019-11-15 23:36:34,949 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2019-11-15 23:36:34,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:34,953 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2019-11-15 23:36:34,959 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:34,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260515803] [2019-11-15 23:36:34,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:34,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:34,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,030 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2019-11-15 23:36:35,031 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:35,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336935770] [2019-11-15 23:36:35,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,047 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2019-11-15 23:36:35,048 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:35,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819073448] [2019-11-15 23:36:35,048 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,063 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,128 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:35,128 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:35,128 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:35,129 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:35,129 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:36:35,129 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:35,129 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:35,129 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:35,129 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2019-11-15 23:36:35,129 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:35,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:35,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,321 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:35,322 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:35,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:35,335 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 [2019-11-15 23:36:35,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:35,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Honda state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:35,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:35,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:35,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:35,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:35,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:35,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:35,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:35,379 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:35,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:35,395 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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 [2019-11-15 23:36:35,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:36:35,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:35,427 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:36:35,429 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:35,429 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:35,429 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:35,429 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:35,429 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:36:35,430 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:35,430 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:35,430 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:35,430 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration1_Loop [2019-11-15 23:36:35,430 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:35,431 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:35,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,544 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:35,548 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:36:35,552 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 [2019-11-15 23:36:35,553 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:35,553 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:35,555 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:35,555 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:35,555 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:35,559 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:35,560 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:35,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:35,580 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 [2019-11-15 23:36:35,582 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:35,582 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:35,590 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:35,590 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:35,590 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:35,591 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:35,591 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:35,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:35,598 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 [2019-11-15 23:36:35,599 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:35,599 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:35,599 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:35,599 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:35,600 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:35,600 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:35,600 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:35,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:35,603 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 [2019-11-15 23:36:35,605 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:35,606 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:35,606 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:35,606 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:35,606 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:35,607 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:35,608 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:35,617 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:36:35,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:36:35,628 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 23:36:35,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:36:35,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:36:35,630 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:36:35,631 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-15 23:36:35,633 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:36:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:35,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:35,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:35,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:35,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:35,713 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:35,714 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-15 23:36:35,774 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2019-11-15 23:36:35,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:35,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2019-11-15 23:36:35,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-15 23:36:35,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:35,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 23:36:35,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:35,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-15 23:36:35,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:35,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2019-11-15 23:36:35,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:35,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2019-11-15 23:36:35,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-15 23:36:35,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-15 23:36:35,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-15 23:36:35,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 23:36:35,791 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 23:36:35,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-15 23:36:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-15 23:36:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-15 23:36:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-15 23:36:35,816 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 23:36:35,816 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 23:36:35,816 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:36:35,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-15 23:36:35,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:35,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:35,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:35,818 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:36:35,818 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:36:35,818 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2019-11-15 23:36:35,818 INFO L793 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2019-11-15 23:36:35,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2019-11-15 23:36:35,819 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:35,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631372503] [2019-11-15 23:36:35,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,844 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2019-11-15 23:36:35,845 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:35,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960209490] [2019-11-15 23:36:35,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,852 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:35,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2019-11-15 23:36:35,852 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:35,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618987102] [2019-11-15 23:36:35,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:35,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:35,877 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:35,909 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:35,909 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:35,909 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:35,909 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:35,909 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:36:35,909 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:35,909 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:35,909 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:35,910 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2019-11-15 23:36:35,910 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:35,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:35,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:35,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,019 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:36,019 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:36,034 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:36,034 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:36,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:36,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Honda state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:36,070 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:36,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:36,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,087 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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 [2019-11-15 23:36:36,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:36:36,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:36,106 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:36:36,107 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:36,108 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:36,108 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:36,108 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:36,108 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:36:36,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:36,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:36,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration2_Loop [2019-11-15 23:36:36,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:36,108 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:36,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,228 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:36,229 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:36:36,229 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 [2019-11-15 23:36:36,230 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,230 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,230 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,230 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,230 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,231 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,231 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:36,233 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 [2019-11-15 23:36:36,236 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,237 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,237 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,237 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,237 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,238 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,238 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:36,240 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 [2019-11-15 23:36:36,241 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,241 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,241 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,242 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,242 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,244 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,244 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:36,261 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 [2019-11-15 23:36:36,262 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,262 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,263 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,263 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,264 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,266 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,266 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,275 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:36:36,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:36:36,284 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 23:36:36,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:36:36,285 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:36:36,285 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:36:36,285 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-15 23:36:36,286 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:36:36,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:36,343 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:36,343 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-15 23:36:36,360 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2019-11-15 23:36:36,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-15 23:36:36,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 23:36:36,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:36,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 23:36:36,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:36,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-15 23:36:36,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:36,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-11-15 23:36:36,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:36,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2019-11-15 23:36:36,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-15 23:36:36,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-15 23:36:36,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-11-15 23:36:36,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 23:36:36,369 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-15 23:36:36,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-11-15 23:36:36,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-15 23:36:36,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-15 23:36:36,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-15 23:36:36,376 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-15 23:36:36,376 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-15 23:36:36,376 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 23:36:36,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-15 23:36:36,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:36:36,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:36,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:36,379 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-15 23:36:36,380 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:36:36,381 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2019-11-15 23:36:36,381 INFO L793 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2019-11-15 23:36:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2019-11-15 23:36:36,382 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:36,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490441024] [2019-11-15 23:36:36,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,418 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2019-11-15 23:36:36,420 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:36,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979184024] [2019-11-15 23:36:36,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,432 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2019-11-15 23:36:36,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:36,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443075808] [2019-11-15 23:36:36,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:36,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:36,452 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:36,489 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:36,489 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:36,489 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:36,489 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:36,490 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:36:36,490 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,490 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:36,490 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:36,490 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2019-11-15 23:36:36,490 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:36,490 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:36,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,593 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:36,593 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:36,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,610 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 [2019-11-15 23:36:36,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:36,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:36,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:36,635 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:36:36,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:36,659 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:36:36,662 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:36,662 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:36,662 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:36,662 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:36,662 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:36:36,662 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:36,662 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:36,663 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:36,663 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration3_Loop [2019-11-15 23:36:36,663 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:36,663 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:36,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:36,772 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:36,772 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:36:36,772 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 [2019-11-15 23:36:36,773 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,773 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,773 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,774 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,774 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,774 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,774 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:36,776 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 [2019-11-15 23:36:36,776 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:36,776 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:36,777 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:36,777 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:36,777 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:36,777 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:36,777 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:36,780 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:36:36,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:36:36,792 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 23:36:36,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:36:36,793 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:36:36,794 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:36:36,794 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-15 23:36:36,794 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:36:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:36,857 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:36,857 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-15 23:36:36,868 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-11-15 23:36:36,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:36,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:36,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-15 23:36:36,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 23:36:36,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:36,870 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 23:36:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:36,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:36,925 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-15 23:36:36,938 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-11-15 23:36:36,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-15 23:36:36,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 23:36:36,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:36,940 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 23:36:36,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:36,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:36,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:37,001 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:37,001 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-15 23:36:37,011 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2019-11-15 23:36:37,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-15 23:36:37,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 23:36:37,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-15 23:36:37,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-15 23:36:37,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2019-11-15 23:36:37,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 23:36:37,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2019-11-15 23:36:37,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-15 23:36:37,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-15 23:36:37,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-15 23:36:37,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 23:36:37,015 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-15 23:36:37,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-15 23:36:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2019-11-15 23:36:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-15 23:36:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-11-15 23:36:37,016 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-15 23:36:37,017 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-15 23:36:37,017 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 23:36:37,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2019-11-15 23:36:37,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 23:36:37,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:36:37,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:36:37,018 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 23:36:37,018 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:36:37,018 INFO L791 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2019-11-15 23:36:37,018 INFO L793 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 380#L24-2 [2019-11-15 23:36:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:37,018 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2019-11-15 23:36:37,018 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:37,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415244222] [2019-11-15 23:36:37,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,025 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:37,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-11-15 23:36:37,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:37,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227176770] [2019-11-15 23:36:37,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,032 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2019-11-15 23:36:37,033 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:36:37,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108868998] [2019-11-15 23:36:37,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:36:37,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:36:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:36:37,041 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:36:37,065 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:37,065 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:37,065 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:37,065 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:37,065 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 23:36:37,065 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:37,065 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:37,066 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:37,066 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2019-11-15 23:36:37,066 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:37,066 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:37,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,177 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:37,177 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:37,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:37,186 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 [2019-11-15 23:36:37,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:37,191 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/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) [2019-11-15 23:36:37,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:37,212 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 [2019-11-15 23:36:37,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:37,216 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:36:37,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:37,234 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:37,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 23:36:37,248 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 23:36:37,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 23:36:37,263 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e93cbc7e-c6d3-4f8f-bde5-994478616a4f/bin/uautomizer/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 [2019-11-15 23:36:37,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 23:36:37,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 23:36:37,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 23:36:37,279 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:36:37,279 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:36:37,279 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:36:37,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:36:37,280 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:36:37,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:36:37,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:36:37,280 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:36:37,280 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-2.c_Iteration4_Loop [2019-11-15 23:36:37,280 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:36:37,280 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:36:37,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:36:37,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:36:37,367 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:36:37,367 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 [2019-11-15 23:36:37,368 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:37,368 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:37,368 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:37,368 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:37,368 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:37,369 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:37,369 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:37,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:37,370 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 [2019-11-15 23:36:37,370 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:37,370 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:37,370 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:37,370 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:37,370 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:37,371 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:37,371 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:37,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:36:37,372 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 [2019-11-15 23:36:37,372 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:36:37,372 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:36:37,372 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:36:37,372 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:36:37,372 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:36:37,373 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:36:37,373 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:36:37,375 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:36:37,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 23:36:37,377 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:36:37,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:36:37,378 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 23:36:37,378 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:36:37,378 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-11-15 23:36:37,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 23:36:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:36:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:37,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:36:37,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:36:37,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:36:37,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:36:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:36:37,424 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 23:36:37,424 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-15 23:36:37,433 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2019-11-15 23:36:37,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 23:36:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:36:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-15 23:36:37,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-15 23:36:37,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 23:36:37,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-15 23:36:37,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:36:37,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2019-11-15 23:36:37,435 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:36:37,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-15 23:36:37,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:36:37,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:36:37,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:36:37,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:36:37,436 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:37,436 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:37,436 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:36:37,436 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 23:36:37,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:36:37,436 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:36:37,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:36:37,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:36:37 BoogieIcfgContainer [2019-11-15 23:36:37,441 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:36:37,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:36:37,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:36:37,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:36:37,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:36:34" (3/4) ... [2019-11-15 23:36:37,444 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:36:37,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:36:37,446 INFO L168 Benchmark]: Toolchain (without parser) took 3206.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -111.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:37,446 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:36:37,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:37,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.08 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. [2019-11-15 23:36:37,448 INFO L168 Benchmark]: Boogie Preprocessor took 15.99 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. [2019-11-15 23:36:37,448 INFO L168 Benchmark]: RCFGBuilder took 249.40 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. [2019-11-15 23:36:37,449 INFO L168 Benchmark]: BuchiAutomizer took 2596.99 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:36:37,449 INFO L168 Benchmark]: Witness Printer took 3.42 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. [2019-11-15 23:36:37,454 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.08 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 15.99 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 249.40 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 2596.99 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.42 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...