./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 c0bce2603970e0a002a5b33cfd00ef3446011286 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 08:24:17,199 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 08:24:17,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 08:24:17,206 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 08:24:17,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 08:24:17,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 08:24:17,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 08:24:17,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 08:24:17,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 08:24:17,209 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 08:24:17,210 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 08:24:17,210 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 08:24:17,210 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 08:24:17,211 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 08:24:17,211 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 08:24:17,212 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 08:24:17,212 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 08:24:17,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 08:24:17,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 08:24:17,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 08:24:17,215 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 08:24:17,216 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 08:24:17,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 08:24:17,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 08:24:17,217 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 08:24:17,218 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 08:24:17,218 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 08:24:17,219 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 08:24:17,219 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 08:24:17,220 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 08:24:17,220 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 08:24:17,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 08:24:17,220 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 08:24:17,220 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 08:24:17,221 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 08:24:17,221 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 08:24:17,221 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 08:24:17,229 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 08:24:17,229 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 08:24:17,230 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 08:24:17,230 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 08:24:17,230 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 08:24:17,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 08:24:17,231 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 08:24:17,232 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 08:24:17,232 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 08:24:17,232 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 08:24:17,233 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 08:24:17,233 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 08:24:17,233 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_89db3ecd-4831-4ecd-afea-b5054b64219d/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 -> c0bce2603970e0a002a5b33cfd00ef3446011286 [2018-12-01 08:24:17,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 08:24:17,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 08:24:17,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 08:24:17,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 08:24:17,260 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 08:24:17,260 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-12-01 08:24:17,295 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/data/3e09e5a99/f8b1631b4e304efdb97444a895588e9c/FLAGbf094581c [2018-12-01 08:24:17,725 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 08:24:17,726 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-12-01 08:24:17,730 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/data/3e09e5a99/f8b1631b4e304efdb97444a895588e9c/FLAGbf094581c [2018-12-01 08:24:17,739 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/data/3e09e5a99/f8b1631b4e304efdb97444a895588e9c [2018-12-01 08:24:17,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 08:24:17,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 08:24:17,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 08:24:17,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 08:24:17,745 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 08:24:17,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17, skipping insertion in model container [2018-12-01 08:24:17,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 08:24:17,761 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 08:24:17,855 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:24:17,857 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 08:24:17,867 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:24:17,875 INFO L195 MainTranslator]: Completed translation [2018-12-01 08:24:17,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17 WrapperNode [2018-12-01 08:24:17,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 08:24:17,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 08:24:17,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 08:24:17,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 08:24:17,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 08:24:17,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 08:24:17,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 08:24:17,896 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 08:24:17,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... [2018-12-01 08:24:17,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 08:24:17,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 08:24:17,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 08:24:17,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 08:24:17,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 08:24:17,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 08:24:18,055 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 08:24:18,055 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-01 08:24:18,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:24:18 BoogieIcfgContainer [2018-12-01 08:24:18,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 08:24:18,056 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 08:24:18,056 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 08:24:18,058 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 08:24:18,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:24:18,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:24:17" (1/3) ... [2018-12-01 08:24:18,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e1d08eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:24:18, skipping insertion in model container [2018-12-01 08:24:18,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:24:18,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:24:17" (2/3) ... [2018-12-01 08:24:18,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e1d08eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:24:18, skipping insertion in model container [2018-12-01 08:24:18,060 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:24:18,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:24:18" (3/3) ... [2018-12-01 08:24:18,061 INFO L375 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-12-01 08:24:18,092 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 08:24:18,093 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 08:24:18,093 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 08:24:18,093 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 08:24:18,093 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 08:24:18,093 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 08:24:18,093 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 08:24:18,093 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 08:24:18,093 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 08:24:18,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 08:24:18,113 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-01 08:24:18,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:18,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:18,117 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 08:24:18,117 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:24:18,117 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 08:24:18,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 08:24:18,118 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-01 08:24:18,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:18,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:18,119 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 08:24:18,119 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:24:18,123 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5; 10#L41true assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 6#L18true assume !(f_~k~0 > 1073741823); 13#L23-1true [2018-12-01 08:24:18,123 INFO L796 eck$LassoCheckResult]: Loop: 13#L23-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L23-1true [2018-12-01 08:24:18,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:18,126 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-12-01 08:24:18,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:18,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:18,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:18,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-12-01 08:24:18,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:18,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:18,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:18,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:18,188 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-12-01 08:24:18,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:18,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:18,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:18,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:18,239 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:18,240 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:18,240 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:18,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:18,240 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:18,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:18,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:18,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:18,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-12-01 08:24:18,241 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:18,241 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:18,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:18,365 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:18,365 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,368 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,369 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,374 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,374 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,389 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,389 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,391 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,392 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,406 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,409 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,409 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,424 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,424 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,426 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,426 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,442 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,442 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,457 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:18,459 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:18,459 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,474 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:18,474 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:18,491 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:18,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:31,901 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-01 08:24:31,906 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:31,907 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:31,907 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:31,907 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:31,907 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:31,907 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:31,907 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:31,908 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:31,908 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-12-01 08:24:31,908 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:31,908 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:31,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:31,995 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:31,998 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:32,000 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 [2018-12-01 08:24:32,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,001 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:32,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,002 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:32,003 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:32,005 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:32,005 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 [2018-12-01 08:24:32,005 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,005 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:32,006 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,006 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,006 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,006 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:32,006 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:32,007 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:32,007 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 [2018-12-01 08:24:32,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,007 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:32,007 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,008 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:32,008 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:32,008 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:32,009 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 [2018-12-01 08:24:32,009 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,009 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:32,009 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,009 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,010 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:32,010 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:32,010 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:32,011 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 [2018-12-01 08:24:32,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:32,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,011 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:32,011 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:32,012 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:32,012 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 [2018-12-01 08:24:32,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:32,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:32,013 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:32,013 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:32,015 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:32,016 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:32,042 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:32,064 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-01 08:24:32,064 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-01 08:24:32,065 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:32,067 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:32,067 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:32,067 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-01 08:24:32,070 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:32,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:32,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:32,109 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:32,119 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-01 08:24:32,120 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-12-01 08:24:32,164 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 49 states and 76 transitions. Complement of second has 7 states. [2018-12-01 08:24:32,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 08:24:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2018-12-01 08:24:32,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-01 08:24:32,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:32,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-01 08:24:32,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:32,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 08:24:32,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:32,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 76 transitions. [2018-12-01 08:24:32,171 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-12-01 08:24:32,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 20 states and 28 transitions. [2018-12-01 08:24:32,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-01 08:24:32,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-12-01 08:24:32,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2018-12-01 08:24:32,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:24:32,176 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2018-12-01 08:24:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2018-12-01 08:24:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2018-12-01 08:24:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-01 08:24:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2018-12-01 08:24:32,194 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-01 08:24:32,194 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-01 08:24:32,194 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 08:24:32,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2018-12-01 08:24:32,194 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-01 08:24:32,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:32,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:32,195 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 08:24:32,195 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 08:24:32,195 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 115#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 120#L18-1 assume !(f_~k~0 > 1073741823); 121#L23-3 [2018-12-01 08:24:32,195 INFO L796 eck$LassoCheckResult]: Loop: 121#L23-3 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 121#L23-3 [2018-12-01 08:24:32,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:32,195 INFO L82 PathProgramCache]: Analyzing trace with hash 32101, now seen corresponding path program 1 times [2018-12-01 08:24:32,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:32,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:32,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:32,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:32,201 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2018-12-01 08:24:32,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:32,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:32,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:32,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:32,205 INFO L82 PathProgramCache]: Analyzing trace with hash 995187, now seen corresponding path program 1 times [2018-12-01 08:24:32,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:32,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:32,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:32,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:32,241 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:32,241 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:32,241 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:32,242 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:32,242 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:32,242 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:32,242 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:32,242 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:32,242 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-12-01 08:24:32,242 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:32,242 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:32,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:32,324 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:32,324 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,326 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,328 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,328 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,345 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,345 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,362 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,362 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,378 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,379 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,380 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,395 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,397 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,398 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,415 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,415 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,430 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,432 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,432 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/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 [2018-12-01 08:24:32,448 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,448 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,450 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,450 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:32,465 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,465 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,467 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,467 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:32,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,483 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:32,484 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:32,484 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:32,500 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:32,500 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:32,518 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:32,518 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,067 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-01 08:24:46,073 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:46,073 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:46,074 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:46,074 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:46,074 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:46,074 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,074 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:46,074 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:46,074 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-12-01 08:24:46,074 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:46,074 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:46,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,148 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:46,148 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:46,149 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 [2018-12-01 08:24:46,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,149 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,150 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,150 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,150 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,151 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,151 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 [2018-12-01 08:24:46,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,151 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,151 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,152 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,152 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,152 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 [2018-12-01 08:24:46,153 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,155 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:46,155 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:46,169 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:46,175 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 08:24:46,176 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 08:24:46,176 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:46,177 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:46,177 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:46,177 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-01 08:24:46,178 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:46,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:46,211 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:46,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:46,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-01 08:24:46,214 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-12-01 08:24:46,240 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2018-12-01 08:24:46,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 08:24:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 08:24:46,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-01 08:24:46,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-01 08:24:46,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 08:24:46,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2018-12-01 08:24:46,250 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-12-01 08:24:46,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 30 transitions. [2018-12-01 08:24:46,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-01 08:24:46,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-12-01 08:24:46,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2018-12-01 08:24:46,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:24:46,252 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2018-12-01 08:24:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2018-12-01 08:24:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2018-12-01 08:24:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-01 08:24:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2018-12-01 08:24:46,254 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-12-01 08:24:46,254 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-12-01 08:24:46,254 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 08:24:46,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2018-12-01 08:24:46,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 08:24:46,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:46,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:46,256 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-01 08:24:46,256 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:46,256 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 195#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 202#L18 assume !(f_~k~0 > 1073741823); 198#L23-1 assume !(f_~z~0 < f_~k~0); 196#L29-2 [2018-12-01 08:24:46,256 INFO L796 eck$LassoCheckResult]: Loop: 196#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 197#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 196#L29-2 [2018-12-01 08:24:46,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,257 INFO L82 PathProgramCache]: Analyzing trace with hash 957451, now seen corresponding path program 1 times [2018-12-01 08:24:46,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2018-12-01 08:24:46,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 920111346, now seen corresponding path program 1 times [2018-12-01 08:24:46,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,301 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:46,301 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:46,301 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:46,301 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:46,301 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:46,301 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,301 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:46,301 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:46,301 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-12-01 08:24:46,301 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:46,301 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:46,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,359 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:46,359 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,363 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,378 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,378 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,379 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,380 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,394 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,394 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,397 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,397 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=-13, ULTIMATE.start_f_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,411 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,411 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,413 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,413 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,428 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,428 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,429 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,429 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,446 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,446 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,460 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,477 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:46,477 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,548 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:46,550 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:46,550 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:46,550 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:46,550 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:46,550 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:46,550 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,550 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:46,550 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:46,550 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-12-01 08:24:46,550 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:46,550 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:46,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,601 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:46,601 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:46,601 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 [2018-12-01 08:24:46,601 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,601 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,602 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,602 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,602 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,602 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,602 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,603 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,603 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 [2018-12-01 08:24:46,603 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,603 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,603 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,603 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,604 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:46,604 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:46,607 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,608 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 [2018-12-01 08:24:46,608 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,608 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,608 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,608 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,609 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,609 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,609 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,609 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,610 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 [2018-12-01 08:24:46,610 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,610 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,610 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,610 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,612 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:46,612 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:46,620 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:46,626 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 08:24:46,626 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 08:24:46,626 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:46,627 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:46,627 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:46,627 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 08:24:46,629 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:46,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:46,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:46,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:46,663 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:46,663 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-01 08:24:46,681 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2018-12-01 08:24:46,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-12-01 08:24:46,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-01 08:24:46,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-01 08:24:46,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-01 08:24:46,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:46,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2018-12-01 08:24:46,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 08:24:46,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 28 transitions. [2018-12-01 08:24:46,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-12-01 08:24:46,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-12-01 08:24:46,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2018-12-01 08:24:46,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:46,683 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2018-12-01 08:24:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2018-12-01 08:24:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-12-01 08:24:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-01 08:24:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2018-12-01 08:24:46,685 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-12-01 08:24:46,685 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-12-01 08:24:46,685 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 08:24:46,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2018-12-01 08:24:46,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 08:24:46,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:46,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:46,686 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-01 08:24:46,686 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:46,686 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 279#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 288#L18-1 assume !(f_~k~0 > 1073741823); 289#L23-3 assume !(f_~z~0 < f_~k~0); 277#L29-5 [2018-12-01 08:24:46,686 INFO L796 eck$LassoCheckResult]: Loop: 277#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 275#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 277#L29-5 [2018-12-01 08:24:46,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,686 INFO L82 PathProgramCache]: Analyzing trace with hash 995185, now seen corresponding path program 1 times [2018-12-01 08:24:46,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,689 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 1 times [2018-12-01 08:24:46,690 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:46,692 INFO L82 PathProgramCache]: Analyzing trace with hash 956374936, now seen corresponding path program 1 times [2018-12-01 08:24:46,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:46,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:46,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:46,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:46,729 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:46,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:46,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:46,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:46,729 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:46,729 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,729 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:46,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:46,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-01 08:24:46,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:46,730 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:46,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,775 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:46,775 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,779 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,795 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,795 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,811 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,811 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,825 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,826 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,828 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,844 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:46,844 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-13} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,858 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:46,859 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:46,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:46,926 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:46,928 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:46,928 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:46,928 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:46,928 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:46,928 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:46,928 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:46,928 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:46,928 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:46,928 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-01 08:24:46,928 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:46,928 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:46,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:46,981 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:46,982 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:46,982 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 [2018-12-01 08:24:46,982 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,982 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,982 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,982 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,983 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:46,983 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:46,985 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,985 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 [2018-12-01 08:24:46,985 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,985 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,985 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,985 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,985 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,986 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,986 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,986 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,986 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 [2018-12-01 08:24:46,986 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,986 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:46,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,987 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:46,987 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:46,987 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:46,987 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 [2018-12-01 08:24:46,987 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:46,988 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:46,988 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:46,988 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:46,988 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:46,988 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:46,993 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:46,995 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:24:46,995 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:24:46,995 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:46,996 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:46,996 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:46,996 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 08:24:46,998 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:47,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:47,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:47,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:47,023 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:47,024 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-01 08:24:47,042 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2018-12-01 08:24:47,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-12-01 08:24:47,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-01 08:24:47,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-01 08:24:47,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-01 08:24:47,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2018-12-01 08:24:47,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 08:24:47,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 34 transitions. [2018-12-01 08:24:47,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-01 08:24:47,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-01 08:24:47,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2018-12-01 08:24:47,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:47,044 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2018-12-01 08:24:47,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2018-12-01 08:24:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-12-01 08:24:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-01 08:24:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2018-12-01 08:24:47,045 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-12-01 08:24:47,045 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-12-01 08:24:47,046 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 08:24:47,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 33 transitions. [2018-12-01 08:24:47,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 08:24:47,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:47,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:47,046 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 08:24:47,046 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 08:24:47,046 INFO L794 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 372#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 383#L18 assume !(f_~k~0 > 1073741823); 378#L23-1 assume !(f_~z~0 < f_~k~0); 379#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 377#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2018-12-01 08:24:47,047 INFO L796 eck$LassoCheckResult]: Loop: 385#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 373#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 374#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2018-12-01 08:24:47,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash 920111342, now seen corresponding path program 1 times [2018-12-01 08:24:47,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,050 INFO L82 PathProgramCache]: Analyzing trace with hash 63396, now seen corresponding path program 1 times [2018-12-01 08:24:47,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,053 INFO L82 PathProgramCache]: Analyzing trace with hash 555740055, now seen corresponding path program 1 times [2018-12-01 08:24:47,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,073 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:47,073 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:47,073 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:47,073 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:47,073 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:47,073 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,074 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:47,074 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:47,074 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-01 08:24:47,074 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:47,074 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:47,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,110 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:47,110 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,112 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,112 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:47,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,137 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,137 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,151 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,151 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,154 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,154 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,168 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,168 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,170 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,171 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,185 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,185 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,199 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,199 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-12-01 08:24:47,225 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:47,225 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:47,225 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:47,225 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:47,225 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:47,226 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:47,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:47,226 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-12-01 08:24:47,226 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:47,226 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:47,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,292 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:47,292 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,294 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,296 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,297 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,313 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,314 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,330 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,330 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,345 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,370 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:47,370 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,510 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:47,511 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:47,511 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:47,511 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:47,512 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:47,512 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:47,512 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,512 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:47,512 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:47,512 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-12-01 08:24:47,512 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:47,512 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:47,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,566 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:47,567 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:47,567 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 [2018-12-01 08:24:47,567 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:47,567 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:47,567 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:47,567 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:47,568 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:47,569 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:47,573 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:47,573 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 [2018-12-01 08:24:47,574 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:47,574 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:47,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:47,574 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-01 08:24:47,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:47,575 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-01 08:24:47,575 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:47,576 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:47,577 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 [2018-12-01 08:24:47,577 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:47,577 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:47,577 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:47,577 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:47,578 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:47,579 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:47,585 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:47,589 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 08:24:47,589 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 08:24:47,589 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:47,590 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:47,590 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:47,590 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 08:24:47,592 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:47,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:47,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:47,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:47,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:47,645 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 08:24:47,645 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-12-01 08:24:47,677 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 32 states and 46 transitions. Complement of second has 7 states. [2018-12-01 08:24:47,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 08:24:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2018-12-01 08:24:47,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-01 08:24:47,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-01 08:24:47,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2018-12-01 08:24:47,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:47,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 46 transitions. [2018-12-01 08:24:47,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 08:24:47,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 41 transitions. [2018-12-01 08:24:47,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-01 08:24:47,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-01 08:24:47,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 41 transitions. [2018-12-01 08:24:47,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:47,679 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 41 transitions. [2018-12-01 08:24:47,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 41 transitions. [2018-12-01 08:24:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-12-01 08:24:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-01 08:24:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2018-12-01 08:24:47,680 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2018-12-01 08:24:47,680 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2018-12-01 08:24:47,680 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-01 08:24:47,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions. [2018-12-01 08:24:47,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 08:24:47,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:47,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:47,681 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 08:24:47,681 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 08:24:47,681 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 488#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 496#L18-1 assume !(f_~k~0 > 1073741823); 497#L23-3 assume !(f_~z~0 < f_~k~0); 505#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 483#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2018-12-01 08:24:47,681 INFO L796 eck$LassoCheckResult]: Loop: 484#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 501#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 502#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2018-12-01 08:24:47,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,681 INFO L82 PathProgramCache]: Analyzing trace with hash 956374932, now seen corresponding path program 1 times [2018-12-01 08:24:47,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash 101130, now seen corresponding path program 1 times [2018-12-01 08:24:47,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:47,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371113, now seen corresponding path program 1 times [2018-12-01 08:24:47,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:47,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:47,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:47,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:47,703 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:47,703 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:47,703 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:47,703 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:47,704 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:47,704 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,704 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:47,704 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:47,704 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-01 08:24:47,704 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:47,704 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:47,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,735 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:47,735 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,740 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,740 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,755 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,755 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,771 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:47,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,779 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,807 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,807 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,812 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,812 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-12-01 08:24:47,845 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:47,845 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:47,845 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:47,845 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:47,845 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:47,846 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,846 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:47,846 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:47,846 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-12-01 08:24:47,846 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:47,846 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:47,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:47,901 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:47,901 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,904 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,904 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,930 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:47,930 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,940 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,941 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0}, {ULTIMATE.start_f_~z~0=-8, ULTIMATE.start_f_~k~0=6}, {ULTIMATE.start_f_~z~0=7, ULTIMATE.start_f_~k~0=-6}] Lambdas: [15, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,955 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,955 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,958 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,958 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=4, ULTIMATE.start_f_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,973 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,973 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,975 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,975 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:47,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:47,997 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:47,998 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:47,999 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,015 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,015 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,030 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,030 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,031 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,046 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,046 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,048 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,049 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,071 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,073 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,073 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,088 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,105 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:48,105 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,227 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:48,228 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:48,228 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:48,229 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:48,229 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:48,229 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:48,229 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,229 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:48,229 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:48,229 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-12-01 08:24:48,229 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:48,229 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:48,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,307 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:48,307 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:48,308 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 [2018-12-01 08:24:48,308 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,308 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,308 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,308 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,309 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:48,309 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:48,314 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:48,316 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:24:48,316 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:24:48,317 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:48,317 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:48,317 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:48,317 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 08:24:48,319 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:48,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:48,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:48,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:48,355 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 08:24:48,355 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-12-01 08:24:48,378 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 37 states and 53 transitions. Complement of second has 7 states. [2018-12-01 08:24:48,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 08:24:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2018-12-01 08:24:48,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-01 08:24:48,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-01 08:24:48,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2018-12-01 08:24:48,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 53 transitions. [2018-12-01 08:24:48,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:48,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 48 transitions. [2018-12-01 08:24:48,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-01 08:24:48,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-01 08:24:48,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 48 transitions. [2018-12-01 08:24:48,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:48,381 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2018-12-01 08:24:48,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 48 transitions. [2018-12-01 08:24:48,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-12-01 08:24:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-01 08:24:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2018-12-01 08:24:48,383 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2018-12-01 08:24:48,383 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2018-12-01 08:24:48,383 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-01 08:24:48,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 47 transitions. [2018-12-01 08:24:48,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:48,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:48,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:48,384 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:24:48,384 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:48,384 INFO L794 eck$LassoCheckResult]: Stem: 614#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 615#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 625#L18 assume !(f_~k~0 > 1073741823); 620#L23-1 assume !(f_~z~0 < f_~k~0); 621#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 636#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 631#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 632#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 638#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 616#L29-2 [2018-12-01 08:24:48,384 INFO L796 eck$LassoCheckResult]: Loop: 616#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 617#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 616#L29-2 [2018-12-01 08:24:48,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,385 INFO L82 PathProgramCache]: Analyzing trace with hash 555740059, now seen corresponding path program 1 times [2018-12-01 08:24:48,385 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:48,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 2 times [2018-12-01 08:24:48,390 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:48,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1490252930, now seen corresponding path program 2 times [2018-12-01 08:24:48,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,394 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:48,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,456 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:48,456 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:48,456 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:48,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:48,457 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:48,457 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,457 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:48,457 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:48,457 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-12-01 08:24:48,457 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:48,457 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:48,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:48,524 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,526 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,540 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,540 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,542 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,542 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:48,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,612 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:48,613 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:48,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:48,613 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:48,613 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:48,613 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:48,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:48,613 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:48,613 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-12-01 08:24:48,613 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:48,613 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:48,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,667 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:48,667 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:48,667 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 [2018-12-01 08:24:48,667 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,668 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,668 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,668 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:48,668 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:48,669 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,670 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 [2018-12-01 08:24:48,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,671 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:48,671 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:48,671 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,672 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 [2018-12-01 08:24:48,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,672 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,672 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,672 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,672 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,672 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,672 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,672 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,673 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 [2018-12-01 08:24:48,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,673 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,673 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,673 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,673 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,674 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 [2018-12-01 08:24:48,674 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,674 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,674 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,674 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,674 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,674 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,674 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,675 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,675 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 [2018-12-01 08:24:48,675 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,675 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,675 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,675 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,675 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,675 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,675 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,675 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,676 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 [2018-12-01 08:24:48,676 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,676 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,676 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,676 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:48,676 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:48,677 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,677 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 [2018-12-01 08:24:48,677 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,678 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,678 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,678 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,678 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,678 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,678 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,678 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,678 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 [2018-12-01 08:24:48,678 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,679 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:48,679 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,679 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:48,679 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:48,679 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:48,679 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 [2018-12-01 08:24:48,680 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:48,680 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:48,680 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:48,680 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:48,680 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:48,680 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:48,683 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:48,687 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-01 08:24:48,687 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-01 08:24:48,687 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:48,688 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:48,688 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:48,688 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 08:24:48,689 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:48,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:48,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:48,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:48,732 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:48,732 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23 Second operand 4 states. [2018-12-01 08:24:48,751 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23. Second operand 4 states. Result 50 states and 69 transitions. Complement of second has 6 states. [2018-12-01 08:24:48,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 08:24:48,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 08:24:48,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:48,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-01 08:24:48,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:48,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 69 transitions. [2018-12-01 08:24:48,753 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:48,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 42 states and 59 transitions. [2018-12-01 08:24:48,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-01 08:24:48,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-12-01 08:24:48,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2018-12-01 08:24:48,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:48,754 INFO L705 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2018-12-01 08:24:48,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2018-12-01 08:24:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-12-01 08:24:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-01 08:24:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2018-12-01 08:24:48,755 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2018-12-01 08:24:48,755 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2018-12-01 08:24:48,756 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-01 08:24:48,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 57 transitions. [2018-12-01 08:24:48,756 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:48,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:48,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:48,756 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 08:24:48,756 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:48,756 INFO L794 eck$LassoCheckResult]: Stem: 760#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 761#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 769#L18-1 assume !(f_~k~0 > 1073741823); 770#L23-3 assume !(f_~z~0 < f_~k~0); 784#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 786#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 776#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 777#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 787#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 757#L29-5 [2018-12-01 08:24:48,757 INFO L796 eck$LassoCheckResult]: Loop: 757#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 756#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 757#L29-5 [2018-12-01 08:24:48,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371109, now seen corresponding path program 1 times [2018-12-01 08:24:48,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,757 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:48,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,761 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 2 times [2018-12-01 08:24:48,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:24:48,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:48,764 INFO L82 PathProgramCache]: Analyzing trace with hash 645770306, now seen corresponding path program 2 times [2018-12-01 08:24:48,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:48,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:48,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,764 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:48,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:48,813 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:48,813 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:48,813 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:48,814 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:48,814 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:48,814 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,814 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:48,814 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:48,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-12-01 08:24:48,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:48,814 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:48,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,881 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:48,881 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,882 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,882 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,884 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:48,884 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:48,898 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,914 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:48,914 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:48,971 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:48,972 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:48,972 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:48,972 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:48,973 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:48,973 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:48,973 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:48,973 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:48,973 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:48,973 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-12-01 08:24:48,973 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:48,973 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:48,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:48,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,026 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:49,026 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:49,027 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 [2018-12-01 08:24:49,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,027 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,027 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,027 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,028 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,028 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 [2018-12-01 08:24:49,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,028 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,028 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,028 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,029 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:49,029 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:49,032 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:49,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:24:49,034 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:24:49,035 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:49,035 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:49,035 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:49,035 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 08:24:49,037 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:49,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:49,077 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:49,077 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27 Second operand 4 states. [2018-12-01 08:24:49,105 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 58 states and 79 transitions. Complement of second has 6 states. [2018-12-01 08:24:49,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 08:24:49,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 08:24:49,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:49,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-01 08:24:49,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 79 transitions. [2018-12-01 08:24:49,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:49,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 50 states and 69 transitions. [2018-12-01 08:24:49,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-01 08:24:49,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-12-01 08:24:49,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 69 transitions. [2018-12-01 08:24:49,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:49,108 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 69 transitions. [2018-12-01 08:24:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 69 transitions. [2018-12-01 08:24:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-12-01 08:24:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-01 08:24:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2018-12-01 08:24:49,111 INFO L728 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2018-12-01 08:24:49,111 INFO L608 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2018-12-01 08:24:49,111 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-01 08:24:49,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 67 transitions. [2018-12-01 08:24:49,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:24:49,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:49,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:49,112 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 08:24:49,112 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:49,112 INFO L794 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 924#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 934#L18 assume !(f_~k~0 > 1073741823); 930#L23-1 assume !(f_~z~0 < f_~k~0); 925#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 926#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 958#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 951#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 952#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 956#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 955#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 936#L29-2 [2018-12-01 08:24:49,112 INFO L796 eck$LassoCheckResult]: Loop: 936#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 935#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 936#L29-2 [2018-12-01 08:24:49,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1600239380, now seen corresponding path program 3 times [2018-12-01 08:24:49,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,113 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 3 times [2018-12-01 08:24:49,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,119 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,121 INFO L82 PathProgramCache]: Analyzing trace with hash 231753147, now seen corresponding path program 4 times [2018-12-01 08:24:49,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,122 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,191 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:49,191 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:49,191 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:49,191 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:49,191 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:49,191 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,192 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:49,192 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:49,192 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-12-01 08:24:49,192 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:49,192 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:49,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,245 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:49,245 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,247 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,247 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,248 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,265 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,265 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,279 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,281 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,281 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,298 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,314 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,314 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,329 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,331 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,331 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,360 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,360 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,363 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,363 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,364 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,365 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,381 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,381 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,396 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:49,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,478 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:49,479 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:49,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:49,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:49,479 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:49,479 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:49,479 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,479 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:49,479 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:49,479 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-12-01 08:24:49,480 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:49,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:49,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,539 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:49,539 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:49,539 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 [2018-12-01 08:24:49,540 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,540 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,540 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,540 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,540 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,540 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,540 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,540 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,541 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 [2018-12-01 08:24:49,541 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,541 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,541 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,541 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,541 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,541 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,541 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,542 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,542 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 08:24:49,542 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,542 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,542 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,542 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,543 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,543 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 [2018-12-01 08:24:49,543 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,543 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,543 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,543 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,544 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:49,544 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:49,544 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,544 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 [2018-12-01 08:24:49,545 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,545 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,545 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,545 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,545 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,545 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,545 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,545 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,545 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 [2018-12-01 08:24:49,546 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,546 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,546 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,546 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,546 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,546 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,546 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,546 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,546 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 [2018-12-01 08:24:49,546 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,547 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,547 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,547 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,547 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,547 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,547 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,547 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,547 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 [2018-12-01 08:24:49,547 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,547 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,547 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,548 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,548 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:49,548 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:49,549 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,549 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 [2018-12-01 08:24:49,550 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,550 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:49,550 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,550 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,550 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,550 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:49,550 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:49,551 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:49,551 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 [2018-12-01 08:24:49,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:49,551 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:49,551 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:49,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:49,552 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:49,552 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:49,557 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:49,559 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 08:24:49,559 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 08:24:49,559 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:49,560 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:49,560 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:49,560 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 08:24:49,562 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:49,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:49,592 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:49,592 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-01 08:24:49,619 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2018-12-01 08:24:49,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 08:24:49,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:49,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,620 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:24:49,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:49,643 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:49,643 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-01 08:24:49,657 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2018-12-01 08:24:49,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 08:24:49,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:49,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,658 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:24:49,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:49,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:49,680 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:49,681 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-01 08:24:49,695 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 59 states and 80 transitions. Complement of second has 5 states. [2018-12-01 08:24:49,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-12-01 08:24:49,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:49,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 2 letters. [2018-12-01 08:24:49,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2018-12-01 08:24:49,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:49,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 80 transitions. [2018-12-01 08:24:49,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 08:24:49,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 25 states and 34 transitions. [2018-12-01 08:24:49,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-01 08:24:49,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-01 08:24:49,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2018-12-01 08:24:49,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 08:24:49,698 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-12-01 08:24:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2018-12-01 08:24:49,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-01 08:24:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-01 08:24:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2018-12-01 08:24:49,699 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-12-01 08:24:49,700 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-12-01 08:24:49,700 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-01 08:24:49,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2018-12-01 08:24:49,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 08:24:49,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:24:49,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:24:49,700 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-12-01 08:24:49,700 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:24:49,701 INFO L794 eck$LassoCheckResult]: Stem: 1310#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 1311#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1312#L18-1 assume !(f_~k~0 > 1073741823); 1313#L23-3 assume !(f_~z~0 < f_~k~0); 1316#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1317#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1329#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1328#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1326#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1325#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1321#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1323#L29-5 [2018-12-01 08:24:49,701 INFO L796 eck$LassoCheckResult]: Loop: 1323#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1324#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1323#L29-5 [2018-12-01 08:24:49,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,701 INFO L82 PathProgramCache]: Analyzing trace with hash 755756756, now seen corresponding path program 3 times [2018-12-01 08:24:49,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,702 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,706 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 3 times [2018-12-01 08:24:49,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,707 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:49,709 INFO L82 PathProgramCache]: Analyzing trace with hash 432771643, now seen corresponding path program 4 times [2018-12-01 08:24:49,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:24:49,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:24:49,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,709 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 08:24:49,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:24:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:24:49,780 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:49,780 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:49,780 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:49,780 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:49,780 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 08:24:49,780 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,780 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:49,780 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:49,780 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-12-01 08:24:49,780 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:49,780 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:49,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,834 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:49,835 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,852 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,852 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,854 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,856 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,856 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,884 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,884 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,888 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 08:24:49,889 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,903 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 08:24:49,903 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89db3ecd-4831-4ecd-afea-b5054b64219d/bin-2019/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 08:24:49,919 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 08:24:49,977 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 08:24:49,978 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:24:49,978 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:24:49,978 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:24:49,978 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:24:49,978 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:24:49,978 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:24:49,978 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:24:49,978 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:24:49,978 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-12-01 08:24:49,978 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:24:49,978 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:24:49,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:49,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:24:50,038 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:24:50,038 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:24:50,038 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 [2018-12-01 08:24:50,039 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:50,039 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:50,039 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:50,039 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:50,039 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:50,039 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:50,040 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:50,040 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 [2018-12-01 08:24:50,040 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:50,040 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:50,040 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:50,040 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:50,040 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:50,041 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:50,041 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:50,041 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:50,041 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 [2018-12-01 08:24:50,041 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:50,041 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:50,041 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:50,041 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:50,042 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:50,042 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:50,043 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:50,043 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 [2018-12-01 08:24:50,043 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:50,043 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:24:50,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:50,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:50,043 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:50,044 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:24:50,044 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:24:50,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:24:50,044 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 [2018-12-01 08:24:50,044 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:24:50,053 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:24:50,053 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:24:50,053 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:24:50,054 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:24:50,054 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:24:50,058 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:24:50,060 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:24:50,060 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:24:50,060 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:24:50,061 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:24:50,061 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:24:50,061 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 08:24:50,063 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 08:24:50,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:50,106 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:50,106 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-12-01 08:24:50,122 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2018-12-01 08:24:50,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-01 08:24:50,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:50,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:50,122 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:24:50,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:50,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:50,149 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-12-01 08:24:50,163 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2018-12-01 08:24:50,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:50,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-01 08:24:50,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:50,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:50,164 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 08:24:50,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:24:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:24:50,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:24:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:24:50,186 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:24:50,186 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-12-01 08:24:50,200 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 36 states and 47 transitions. Complement of second has 5 states. [2018-12-01 08:24:50,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 08:24:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:24:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-12-01 08:24:50,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-01 08:24:50,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:50,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 2 letters. [2018-12-01 08:24:50,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:50,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 4 letters. [2018-12-01 08:24:50,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:24:50,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2018-12-01 08:24:50,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:24:50,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 08:24:50,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 08:24:50,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:24:50,201 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-01 08:24:50,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 08:24:50,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:24:50,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 08:24:50,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:24:50 BoogieIcfgContainer [2018-12-01 08:24:50,206 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 08:24:50,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 08:24:50,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 08:24:50,206 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 08:24:50,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:24:18" (3/4) ... [2018-12-01 08:24:50,208 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 08:24:50,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 08:24:50,209 INFO L168 Benchmark]: Toolchain (without parser) took 32467.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 957.1 MB in the beginning and 1.2 GB in the end (delta: -196.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2018-12-01 08:24:50,210 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:24:50,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.55 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-01 08:24:50,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:24:50,210 INFO L168 Benchmark]: Boogie Preprocessor took 13.86 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-01 08:24:50,210 INFO L168 Benchmark]: RCFGBuilder took 146.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-01 08:24:50,211 INFO L168 Benchmark]: BuchiAutomizer took 32149.78 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-12-01 08:24:50,211 INFO L168 Benchmark]: Witness Printer took 2.70 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. [2018-12-01 08:24:50,212 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.55 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.86 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 146.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32149.78 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 98.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 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 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.1s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 31.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 182 SDtfs, 246 SDslu, 59 SDs, 0 SdLazy, 137 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital34 mio100 ax100 hnf93 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf91 smp100 dnf100 smp100 tf101 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 54ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 58 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 28.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...