./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 64bit --witnessprinter.graph.data.programhash b11f086006b59545dfe302b4d0afe0208312f571 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:48:52,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:48:52,807 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:48:52,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:48:52,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:48:52,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:48:52,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:48:52,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:48:52,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:48:52,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:48:52,821 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:48:52,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:48:52,822 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:48:52,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:48:52,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:48:52,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:48:52,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:48:52,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:48:52,828 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:48:52,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:48:52,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:48:52,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:48:52,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:48:52,833 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:48:52,833 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:48:52,834 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:48:52,835 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:48:52,835 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:48:52,836 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:48:52,837 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:48:52,837 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:48:52,837 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:48:52,838 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:48:52,838 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:48:52,838 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:48:52,839 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:48:52,839 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 22:48:52,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:48:52,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:48:52,852 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:48:52,852 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:48:52,852 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 22:48:52,852 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 22:48:52,852 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 22:48:52,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 22:48:52,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 22:48:52,854 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:48:52,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 22:48:52,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:48:52,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:48:52,855 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 22:48:52,855 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:48:52,855 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 22:48:52,855 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 22:48:52,856 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 22:48:52,856 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b11f086006b59545dfe302b4d0afe0208312f571 [2018-11-22 22:48:52,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:48:52,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:48:52,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:48:52,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:48:52,889 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:48:52,890 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-22 22:48:52,928 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/data/fb8a01307/60b14d5719974f08be8cd469c59ce7ce/FLAG48344724b [2018-11-22 22:48:53,229 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:48:53,229 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-22 22:48:53,233 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/data/fb8a01307/60b14d5719974f08be8cd469c59ce7ce/FLAG48344724b [2018-11-22 22:48:53,244 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/data/fb8a01307/60b14d5719974f08be8cd469c59ce7ce [2018-11-22 22:48:53,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:48:53,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:48:53,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:48:53,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:48:53,250 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:48:53,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e234a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53, skipping insertion in model container [2018-11-22 22:48:53,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:48:53,274 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:48:53,380 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:48:53,382 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:48:53,392 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:48:53,401 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:48:53,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53 WrapperNode [2018-11-22 22:48:53,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:48:53,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:48:53,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:48:53,402 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:48:53,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:48:53,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:48:53,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:48:53,421 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:48:53,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... [2018-11-22 22:48:53,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:48:53,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:48:53,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:48:53,433 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:48:53,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:48:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:48:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:48:53,621 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:48:53,621 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 22:48:53,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:48:53 BoogieIcfgContainer [2018-11-22 22:48:53,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:48:53,622 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 22:48:53,623 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 22:48:53,626 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 22:48:53,626 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:48:53,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 10:48:53" (1/3) ... [2018-11-22 22:48:53,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c6a102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:48:53, skipping insertion in model container [2018-11-22 22:48:53,627 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:48:53,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:48:53" (2/3) ... [2018-11-22 22:48:53,628 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37c6a102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:48:53, skipping insertion in model container [2018-11-22 22:48:53,628 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:48:53,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:48:53" (3/3) ... [2018-11-22 22:48:53,629 INFO L375 chiAutomizerObserver]: Analyzing ICFG aaron3_true-termination_true-valid-memsafety.c [2018-11-22 22:48:53,678 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:48:53,678 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 22:48:53,678 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 22:48:53,678 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 22:48:53,679 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:48:53,679 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:48:53,679 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 22:48:53,679 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:48:53,679 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 22:48:53,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-22 22:48:53,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 22:48:53,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:48:53,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:48:53,718 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 22:48:53,718 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:48:53,718 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 22:48:53,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-22 22:48:53,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 22:48:53,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:48:53,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:48:53,721 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 22:48:53,721 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:48:53,728 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2018-11-22 22:48:53,728 INFO L796 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 5#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2018-11-22 22:48:53,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:53,733 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-22 22:48:53,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:53,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:53,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:53,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:53,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2018-11-22 22:48:53,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:53,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:53,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:53,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2018-11-22 22:48:53,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:53,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:53,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:53,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:53,896 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:48:53,897 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:48:53,897 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:48:53,897 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:48:53,897 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:48:53,897 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:48:53,897 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:48:53,897 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:48:53,898 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-22 22:48:53,898 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:48:53,898 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:48:53,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:53,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:53,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:53,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:53,992 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:48:53,993 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:48:54,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:48:54,010 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:48:54,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:48:54,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:48:54,224 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:48:54,225 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:48:54,225 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:48:54,225 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:48:54,225 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:48:54,225 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:48:54,225 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:48:54,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:48:54,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:48:54,226 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-22 22:48:54,226 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:48:54,226 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:48:54,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,295 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:48:54,298 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:48:54,300 INFO L122 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 [2018-11-22 22:48:54,300 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:48:54,301 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:48:54,301 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:48:54,301 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:48:54,301 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:48:54,303 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:48:54,303 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:48:54,308 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:48:54,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:48:54,314 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 22:48:54,315 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:48:54,315 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:48:54,316 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:48:54,316 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 22:48:54,317 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:48:54,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:48:54,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:48:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:48:54,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:48:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:48:54,387 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 [2018-11-22 22:48:54,388 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2018-11-22 22:48:54,428 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 31 states and 42 transitions. Complement of second has 8 states. [2018-11-22 22:48:54,428 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 [2018-11-22 22:48:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:48:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-22 22:48:54,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 22:48:54,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:48:54,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 22:48:54,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:48:54,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 22:48:54,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:48:54,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2018-11-22 22:48:54,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 22:48:54,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2018-11-22 22:48:54,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-22 22:48:54,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-22 22:48:54,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-22 22:48:54,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:48:54,439 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-22 22:48:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-22 22:48:54,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-22 22:48:54,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-22 22:48:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-22 22:48:54,455 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-22 22:48:54,455 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-22 22:48:54,455 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 22:48:54,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-22 22:48:54,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 22:48:54,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:48:54,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:48:54,456 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:48:54,456 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 22:48:54,457 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2018-11-22 22:48:54,457 INFO L796 eck$LassoCheckResult]: Loop: 92#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 93#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 102#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2018-11-22 22:48:54,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:54,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-22 22:48:54,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:54,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:54,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:54,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:54,470 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2018-11-22 22:48:54,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:54,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:54,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:54,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:48:54,475 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2018-11-22 22:48:54,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:48:54,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:48:54,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:48:54,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:48:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:48:54,521 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:48:54,521 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:48:54,521 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:48:54,521 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:48:54,521 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:48:54,521 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:48:54,521 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:48:54,521 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:48:54,522 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-22 22:48:54,522 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:48:54,522 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:48:54,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:48:54,608 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:48:54,608 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:48:54,617 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:48:54,617 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:48:54,633 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:48:54,634 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:48:54,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:48:54,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:48:54,639 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:48:54,639 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-1} Honda state: {ULTIMATE.start_main_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:48:54,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:48:54,662 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:48:54,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:48:54,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:06,769 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-22 22:49:06,775 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:49:06,775 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:49:06,775 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:49:06,776 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:49:06,776 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:49:06,776 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:06,776 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:49:06,776 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:49:06,776 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-22 22:49:06,776 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:49:06,777 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:49:06,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:06,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:06,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:06,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:06,857 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:49:06,857 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:49:06,858 INFO L122 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 [2018-11-22 22:49:06,858 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,859 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:06,859 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:06,861 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:49:06,861 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:49:06,865 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,865 INFO L122 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 [2018-11-22 22:49:06,866 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,866 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:06,866 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,866 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-22 22:49:06,866 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:06,867 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-22 22:49:06,867 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:06,872 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,873 INFO L122 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 [2018-11-22 22:49:06,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,873 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:06,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:06,875 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:06,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:49:06,876 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:06,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,881 INFO L122 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 [2018-11-22 22:49:06,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:06,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:06,882 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:49:06,882 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:49:06,888 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,888 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-22 22:49:06,889 INFO L122 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 [2018-11-22 22:49:06,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,890 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,890 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:06,890 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-22 22:49:06,892 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-22 22:49:06,892 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-22 22:49:06,895 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,895 INFO L122 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 [2018-11-22 22:49:06,896 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,896 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:06,896 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,896 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-22 22:49:06,896 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-22 22:49:06,897 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:49:06,897 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:06,903 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:06,904 INFO L122 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 [2018-11-22 22:49:06,904 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:06,904 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:06,904 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:06,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:06,905 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-22 22:49:06,906 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-22 22:49:06,906 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:06,916 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:49:06,929 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-22 22:49:06,929 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-22 22:49:06,929 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:49:06,929 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:49:06,930 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:49:06,930 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2018-11-22 22:49:06,930 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:49:06,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:06,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:06,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:49:07,116 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 22:49:07,116 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-22 22:49:07,189 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 6 states. [2018-11-22 22:49:07,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-22 22:49:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 22:49:07,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-22 22:49:07,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-22 22:49:07,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-22 22:49:07,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-22 22:49:07,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-22 22:49:07,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:49:07,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-22 22:49:07,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-22 22:49:07,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-22 22:49:07,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-22 22:49:07,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:49:07,193 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-22 22:49:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-22 22:49:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-22 22:49:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-22 22:49:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-22 22:49:07,196 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-22 22:49:07,196 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-22 22:49:07,196 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 22:49:07,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-22 22:49:07,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:49:07,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:49:07,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:49:07,197 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:49:07,197 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:49:07,197 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2018-11-22 22:49:07,197 INFO L796 eck$LassoCheckResult]: Loop: 181#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 185#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 181#L27-2 [2018-11-22 22:49:07,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2018-11-22 22:49:07,198 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:49:07,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2018-11-22 22:49:07,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,207 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:49:07,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,211 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2018-11-22 22:49:07,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,213 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:49:07,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,231 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:49:07,232 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:49:07,232 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:49:07,232 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:49:07,232 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:49:07,232 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,232 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:49:07,232 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:49:07,232 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-22 22:49:07,232 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:49:07,232 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:49:07,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,273 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:49:07,274 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:49:07,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,277 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,280 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:49:07,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:49:07,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,295 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:49:07,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,503 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:49:07,504 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:49:07,504 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:49:07,505 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:49:07,505 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:49:07,505 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:49:07,505 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,505 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:49:07,505 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:49:07,505 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-22 22:49:07,505 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:49:07,505 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:49:07,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,539 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:49:07,539 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:49:07,540 INFO L122 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 [2018-11-22 22:49:07,540 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:07,540 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:07,540 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:07,540 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:07,540 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:07,541 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:49:07,541 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:07,542 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:07,542 INFO L122 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 [2018-11-22 22:49:07,542 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:07,542 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:07,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:07,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:07,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:07,543 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:49:07,543 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:07,545 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:49:07,547 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:49:07,547 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 22:49:07,548 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:49:07,548 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:49:07,548 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:49:07,548 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 22:49:07,548 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:49:07,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:07,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:07,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:49:07,584 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 [2018-11-22 22:49:07,584 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 22:49:07,597 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 29 transitions. Complement of second has 5 states. [2018-11-22 22:49:07,597 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 [2018-11-22 22:49:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:49:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 22:49:07,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-22 22:49:07,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-22 22:49:07,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-22 22:49:07,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:07,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2018-11-22 22:49:07,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:49:07,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-22 22:49:07,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-22 22:49:07,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-22 22:49:07,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-22 22:49:07,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:49:07,600 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-22 22:49:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-22 22:49:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-22 22:49:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-22 22:49:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-22 22:49:07,602 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-22 22:49:07,602 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-22 22:49:07,602 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 22:49:07,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-22 22:49:07,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 22:49:07,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:49:07,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:49:07,603 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-11-22 22:49:07,604 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:49:07,604 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2018-11-22 22:49:07,604 INFO L796 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 274#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2018-11-22 22:49:07,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2018-11-22 22:49:07,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:49:07,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2018-11-22 22:49:07,614 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,615 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:49:07,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:07,618 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2018-11-22 22:49:07,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:49:07,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:49:07,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,620 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:49:07,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:49:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:49:07,672 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:49:07,672 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:49:07,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:49:07,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:49:07,672 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 22:49:07,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:49:07,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:49:07,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-22 22:49:07,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:49:07,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:49:07,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,716 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:49:07,717 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:49:07,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,735 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:49:07,735 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,738 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,753 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:49:07,753 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,756 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,758 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 22:49:07,758 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/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 [2018-11-22 22:49:07,774 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 22:49:07,774 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a03ab89-2f64-4648-9290-6ef7d2968385/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,791 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 22:49:07,791 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 22:49:07,960 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 22:49:07,962 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:49:07,962 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:49:07,962 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:49:07,962 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:49:07,962 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:49:07,962 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:49:07,962 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:49:07,962 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:49:07,962 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-22 22:49:07,962 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:49:07,963 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:49:07,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:49:07,993 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:49:07,994 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:49:07,994 INFO L122 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 [2018-11-22 22:49:07,994 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:07,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:07,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:07,995 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:07,995 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:49:07,995 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:49:08,002 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:08,002 INFO L122 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 [2018-11-22 22:49:08,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:08,003 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:08,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:08,003 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:08,003 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:08,004 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:49:08,004 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:08,004 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:08,004 INFO L122 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 [2018-11-22 22:49:08,005 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:08,005 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:08,005 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:08,005 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:08,006 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:49:08,006 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:49:08,008 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:49:08,008 INFO L122 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 [2018-11-22 22:49:08,009 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:49:08,009 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:49:08,009 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:49:08,009 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:49:08,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:49:08,010 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:49:08,010 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:49:08,011 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:49:08,013 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 22:49:08,013 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 22:49:08,014 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:49:08,014 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 22:49:08,014 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:49:08,014 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-22 22:49:08,014 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 22:49:08,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,045 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:49:08,051 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 [2018-11-22 22:49:08,051 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-22 22:49:08,061 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2018-11-22 22:49:08,061 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 [2018-11-22 22:49:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:49:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 22:49:08,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-22 22:49:08,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:08,062 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 22:49:08,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:49:08,098 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 [2018-11-22 22:49:08,099 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-22 22:49:08,111 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2018-11-22 22:49:08,112 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 [2018-11-22 22:49:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:49:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 22:49:08,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-22 22:49:08,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:08,112 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 22:49:08,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:49:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:49:08,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:49:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:49:08,145 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 [2018-11-22 22:49:08,146 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-22 22:49:08,156 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 29 transitions. Complement of second has 4 states. [2018-11-22 22:49:08,157 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 [2018-11-22 22:49:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:49:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-22 22:49:08,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-22 22:49:08,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:08,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-22 22:49:08,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:08,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-22 22:49:08,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:49:08,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2018-11-22 22:49:08,159 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:49:08,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-11-22 22:49:08,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 22:49:08,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 22:49:08,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 22:49:08,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 22:49:08,159 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:49:08,159 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:49:08,159 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:49:08,159 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 22:49:08,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:49:08,160 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:49:08,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 22:49:08,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 10:49:08 BoogieIcfgContainer [2018-11-22 22:49:08,171 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 22:49:08,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:49:08,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:49:08,171 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:49:08,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:48:53" (3/4) ... [2018-11-22 22:49:08,175 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 22:49:08,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:49:08,175 INFO L168 Benchmark]: Toolchain (without parser) took 14928.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -95.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:49:08,177 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:49:08,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:49:08,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:49:08,178 INFO L168 Benchmark]: Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:49:08,178 INFO L168 Benchmark]: RCFGBuilder took 189.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:49:08,178 INFO L168 Benchmark]: BuchiAutomizer took 14548.43 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:49:08,179 INFO L168 Benchmark]: Witness Printer took 3.69 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. [2018-11-22 22:49:08,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.41 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.44 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 189.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14548.43 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.69 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 * y + 2 * x + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 13.8s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 60 SDslu, 8 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...