./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 0.1.23-0cd3be1 [2018-11-28 13:10:45,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:10:45,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:10:45,630 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:10:45,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:10:45,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:10:45,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:10:45,633 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:10:45,634 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:10:45,635 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:10:45,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:10:45,636 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:10:45,637 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:10:45,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:10:45,638 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:10:45,639 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:10:45,640 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:10:45,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:10:45,643 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:10:45,644 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:10:45,645 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:10:45,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:10:45,649 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:10:45,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:10:45,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:10:45,650 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:10:45,651 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:10:45,652 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:10:45,652 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:10:45,653 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:10:45,653 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:10:45,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:10:45,655 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:10:45,655 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:10:45,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:10:45,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:10:45,656 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:10:45,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:10:45,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:10:45,669 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:10:45,669 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:10:45,669 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:10:45,670 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:10:45,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:10:45,670 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:10:45,671 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:10:45,672 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:10:45,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:10:45,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:10:45,672 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:10:45,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:10:45,672 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:10:45,672 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:10:45,673 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:10:45,673 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_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:45,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:10:45,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:10:45,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:10:45,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:10:45,707 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:10:45,707 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-28 13:10:45,746 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/data/0ad391dea/a95a61b0d0b3482897b5b412a3ceb571/FLAGe2552fde7 [2018-11-28 13:10:46,076 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:10:46,077 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-28 13:10:46,082 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/data/0ad391dea/a95a61b0d0b3482897b5b412a3ceb571/FLAGe2552fde7 [2018-11-28 13:10:46,505 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/data/0ad391dea/a95a61b0d0b3482897b5b412a3ceb571 [2018-11-28 13:10:46,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:10:46,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:10:46,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:46,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:10:46,511 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:10:46,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e147400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46, skipping insertion in model container [2018-11-28 13:10:46,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:10:46,528 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:10:46,627 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:46,629 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:10:46,639 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:46,647 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:10:46,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46 WrapperNode [2018-11-28 13:10:46,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:46,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:46,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:10:46,649 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:10:46,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:46,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:10:46,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:10:46,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:10:46,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... [2018-11-28 13:10:46,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:10:46,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:10:46,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:10:46,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:10:46,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:10:46,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:10:46,858 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:10:46,859 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 13:10:46,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:46 BoogieIcfgContainer [2018-11-28 13:10:46,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:10:46,859 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:10:46,859 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:10:46,861 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:10:46,862 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:10:46,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:10:46" (1/3) ... [2018-11-28 13:10:46,863 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12499280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:10:46, skipping insertion in model container [2018-11-28 13:10:46,863 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:10:46,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:46" (2/3) ... [2018-11-28 13:10:46,863 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12499280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:10:46, skipping insertion in model container [2018-11-28 13:10:46,864 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:10:46,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:46" (3/3) ... [2018-11-28 13:10:46,865 INFO L375 chiAutomizerObserver]: Analyzing ICFG aaron3_true-termination_true-valid-memsafety.c [2018-11-28 13:10:46,902 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:10:46,903 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:10:46,903 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:10:46,903 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:10:46,903 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:10:46,903 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:10:46,903 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:10:46,903 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:10:46,903 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:10:46,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 13:10:46,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:10:46,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:10:46,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:10:46,932 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 13:10:46,932 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:10:46,932 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:10:46,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 13:10:46,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:10:46,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:10:46,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:10:46,935 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 13:10:46,935 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:10:46,942 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2018-11-28 13:10:46,943 INFO L796 eck$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 [2018-11-28 13:10:46,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-28 13:10:46,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:46,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:46,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:46,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:46,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2018-11-28 13:10:47,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:47,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:47,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:47,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2018-11-28 13:10:47,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:47,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:47,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:47,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,091 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:10:47,092 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:10:47,092 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:10:47,092 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:10:47,092 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:10:47,092 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:10:47,093 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:10:47,093 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:10:47,093 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 13:10:47,093 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:10:47,093 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:10:47,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,211 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:10:47,212 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,222 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,222 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,252 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:10:47,252 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,255 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,255 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:10:47,279 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,282 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,283 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,313 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:10:47,313 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,492 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:10:47,493 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:10:47,493 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:10:47,493 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:10:47,493 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:10:47,493 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:10:47,493 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:10:47,493 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:10:47,493 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:10:47,494 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 13:10:47,494 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:10:47,494 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:10:47,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,546 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:10:47,549 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:10:47,550 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 [2018-11-28 13:10:47,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:10:47,551 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:10:47,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:10:47,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:10:47,555 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:10:47,555 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:10:47,560 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:10:47,560 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 [2018-11-28 13:10:47,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:10:47,560 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:10:47,560 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:10:47,561 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:10:47,562 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:10:47,562 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:10:47,566 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:10:47,566 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 [2018-11-28 13:10:47,567 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:10:47,567 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:10:47,567 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:10:47,568 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:10:47,568 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:10:47,568 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:10:47,568 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:10:47,572 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:10:47,577 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:10:47,577 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:10:47,579 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:10:47,579 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:10:47,579 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:10:47,580 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2018-11-28 13:10:47,581 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:10:47,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:47,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:47,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:10:47,647 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 [2018-11-28 13:10:47,648 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2018-11-28 13:10:47,679 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. [2018-11-28 13:10:47,679 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 [2018-11-28 13:10:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:10:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 13:10:47,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 13:10:47,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:10:47,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 13:10:47,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:10:47,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 13:10:47,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:10:47,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2018-11-28 13:10:47,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:10:47,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2018-11-28 13:10:47,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 13:10:47,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 13:10:47,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-28 13:10:47,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:10:47,690 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 13:10:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-28 13:10:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 13:10:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 13:10:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-28 13:10:47,707 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 13:10:47,708 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 13:10:47,708 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:10:47,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-28 13:10:47,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:10:47,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:10:47,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:10:47,709 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:10:47,709 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:10:47,709 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2018-11-28 13:10:47,709 INFO L796 eck$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 [2018-11-28 13:10:47,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-28 13:10:47,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:47,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:47,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:47,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,720 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2018-11-28 13:10:47,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:47,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:47,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:47,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:47,726 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2018-11-28 13:10:47,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:47,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:47,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:47,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:47,780 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:10:47,781 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:10:47,781 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:10:47,781 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:10:47,781 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:10:47,781 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:10:47,781 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:10:47,781 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:10:47,781 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-28 13:10:47,781 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:10:47,781 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:10:47,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:10:47,866 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:10:47,866 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,868 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,868 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,884 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:10:47,884 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_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,906 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:10:47,906 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_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,934 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,935 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:10:47,958 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:10:47,959 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,962 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:10:47,962 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:10:47,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:10:47,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:01,521 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 13:11:01,527 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:11:01,527 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:11:01,527 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:11:01,528 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:11:01,528 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:11:01,528 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:01,528 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:11:01,528 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:11:01,528 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-28 13:11:01,528 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:11:01,528 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:11:01,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:01,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:01,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:01,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:01,597 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:11:01,597 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:11:01,598 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 [2018-11-28 13:11:01,599 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,602 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,602 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,602 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:01,604 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:11:01,604 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:11:01,608 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,608 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 [2018-11-28 13:11:01,609 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,610 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:01,610 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,610 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 13:11:01,610 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:01,612 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 13:11:01,612 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:01,615 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,616 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 [2018-11-28 13:11:01,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,617 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,617 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,617 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:01,619 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:11:01,619 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:11:01,626 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,626 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 [2018-11-28 13:11:01,627 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,627 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:01,627 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,627 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:01,628 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:11:01,628 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:01,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,636 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-28 13:11:01,636 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 [2018-11-28 13:11:01,637 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,637 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 13:11:01,640 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 13:11:01,641 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 13:11:01,643 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,644 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 [2018-11-28 13:11:01,644 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,644 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:01,644 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,645 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 13:11:01,645 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 13:11:01,645 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:11:01,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:01,649 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,649 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 [2018-11-28 13:11:01,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,650 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 13:11:01,651 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 13:11:01,651 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 13:11:01,659 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:01,659 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 [2018-11-28 13:11:01,660 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:01,660 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:01,660 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:01,660 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:01,660 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 13:11:01,663 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-28 13:11:01,663 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:01,671 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:11:01,679 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 13:11:01,679 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:11:01,679 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:11:01,679 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:11:01,680 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:11:01,680 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 [] [2018-11-28 13:11:01,680 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:11:01,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:01,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:01,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:01,850 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 [2018-11-28 13:11:01,850 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-28 13:11:01,943 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. [2018-11-28 13:11:01,944 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 [2018-11-28 13:11:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 13:11:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-28 13:11:01,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-28 13:11:01,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:01,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-28 13:11:01,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:01,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-28 13:11:01,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:01,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-28 13:11:01,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:11:01,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-28 13:11:01,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 13:11:01,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 13:11:01,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-28 13:11:01,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:11:01,948 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-28 13:11:01,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-28 13:11:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-28 13:11:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 13:11:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 13:11:01,949 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 13:11:01,949 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 13:11:01,949 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:11:01,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-28 13:11:01,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:11:01,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:11:01,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:11:01,951 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:01,951 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:11:01,951 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2018-11-28 13:11:01,951 INFO L796 eck$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 [2018-11-28 13:11:01,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:01,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2018-11-28 13:11:01,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:01,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:01,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:01,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:01,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2018-11-28 13:11:01,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:01,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:01,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,963 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:01,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:01,967 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2018-11-28 13:11:01,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:01,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,968 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:01,999 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:11:01,999 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:11:01,999 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:11:01,999 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:11:01,999 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:11:02,000 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,000 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:11:02,000 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:11:02,000 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-28 13:11:02,000 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:11:02,000 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:11:02,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,036 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:11:02,037 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:11:02,038 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:11:02,039 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:02,041 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:11:02,041 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_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:11:02,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:11:02,061 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:02,076 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:11:02,076 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:11:02,081 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:11:02,081 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:02,096 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:11:02,096 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:11:02,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:11:02,099 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/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 [2018-11-28 13:11:02,115 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:11:02,115 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:02,286 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:11:02,287 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:11:02,288 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:11:02,288 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:11:02,288 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:11:02,288 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:11:02,288 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,288 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:11:02,288 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:11:02,288 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-28 13:11:02,288 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:11:02,288 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:11:02,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,320 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:11:02,320 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:11:02,320 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 [2018-11-28 13:11:02,320 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:02,320 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:02,321 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:02,321 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:02,321 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:02,321 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:11:02,321 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:02,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:02,322 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 [2018-11-28 13:11:02,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:02,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:02,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:02,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:02,324 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:11:02,324 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:11:02,326 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:11:02,327 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 [2018-11-28 13:11:02,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:02,327 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:02,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:02,328 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:02,328 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:02,328 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:11:02,329 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:02,331 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:11:02,333 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:11:02,333 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:11:02,333 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:11:02,333 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:11:02,334 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:11:02,334 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 [] [2018-11-28 13:11:02,334 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:11:02,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:02,369 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 [2018-11-28 13:11:02,370 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 13:11:02,377 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. [2018-11-28 13:11:02,378 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 [2018-11-28 13:11:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:11:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 13:11:02,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 13:11:02,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 13:11:02,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 13:11:02,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2018-11-28 13:11:02,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:11:02,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-28 13:11:02,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 13:11:02,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 13:11:02,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-28 13:11:02,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:11:02,381 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 13:11:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-28 13:11:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 13:11:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 13:11:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-28 13:11:02,383 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 13:11:02,384 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 13:11:02,384 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 13:11:02,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-28 13:11:02,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:11:02,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:11:02,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:11:02,385 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-11-28 13:11:02,385 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:11:02,385 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2018-11-28 13:11:02,385 INFO L796 eck$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 [2018-11-28 13:11:02,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2018-11-28 13:11:02,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:02,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:02,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:02,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2018-11-28 13:11:02,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:02,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:02,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:02,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,405 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2018-11-28 13:11:02,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:02,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:02,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,406 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:11:02,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:11:02,443 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:11:02,443 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:11:02,443 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:11:02,443 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:11:02,443 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:11:02,443 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,443 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:11:02,443 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:11:02,443 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-28 13:11:02,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:11:02,444 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:11:02,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,483 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:11:02,483 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,487 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:11:02,487 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a46e1aea-6b46-4068-abee-8fd6e9982d7d/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,504 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:11:02,505 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:11:02,734 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:11:02,735 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:11:02,736 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:11:02,736 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:11:02,736 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:11:02,736 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:11:02,736 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:11:02,736 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:11:02,736 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:11:02,736 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-28 13:11:02,736 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:11:02,736 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:11:02,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:11:02,776 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:11:02,776 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:11:02,777 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 [2018-11-28 13:11:02,777 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:11:02,777 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:11:02,777 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:11:02,777 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:11:02,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:11:02,777 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:11:02,778 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:11:02,779 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:11:02,781 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:11:02,781 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:11:02,781 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:11:02,781 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:11:02,781 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:11:02,781 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 [] [2018-11-28 13:11:02,786 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:11:02,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:02,828 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 [2018-11-28 13:11:02,828 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 13:11:02,837 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. [2018-11-28 13:11:02,838 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 [2018-11-28 13:11:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:11:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 13:11:02,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 13:11:02,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,838 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:11:02,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:02,860 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 [2018-11-28 13:11:02,861 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 13:11:02,867 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. [2018-11-28 13:11:02,868 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 [2018-11-28 13:11:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:11:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 13:11:02,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 13:11:02,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,868 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:11:02,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:02,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:11:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:02,891 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 [2018-11-28 13:11:02,891 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 13:11:02,898 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. [2018-11-28 13:11:02,899 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 [2018-11-28 13:11:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:11:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 13:11:02,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 13:11:02,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-28 13:11:02,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-28 13:11:02,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:11:02,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2018-11-28 13:11:02,901 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:11:02,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-11-28 13:11:02,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:11:02,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:11:02,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:11:02,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:11:02,901 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:11:02,901 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:11:02,902 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:11:02,902 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 13:11:02,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:11:02,902 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:11:02,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:11:02,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:11:02 BoogieIcfgContainer [2018-11-28 13:11:02,907 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:11:02,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:11:02,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:11:02,907 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:11:02,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:46" (3/4) ... [2018-11-28 13:11:02,912 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:11:02,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:11:02,912 INFO L168 Benchmark]: Toolchain (without parser) took 16405.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:02,913 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:11:02,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:02,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:11:02,914 INFO L168 Benchmark]: Boogie Preprocessor took 13.08 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:02,915 INFO L168 Benchmark]: RCFGBuilder took 175.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:02,915 INFO L168 Benchmark]: BuchiAutomizer took 16047.63 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -31.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:02,916 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:11:02,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.12 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 21.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.08 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 16047.63 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -31.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * y + 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 16.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 15.4s. 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: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 14.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...