./Ultimate.py --spec ../../sv-benchmarks/c/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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 0.1.23-1dbac8b [2018-11-10 12:39:50,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:39:50,784 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:39:50,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:39:50,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:39:50,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:39:50,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:39:50,796 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:39:50,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:39:50,797 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:39:50,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:39:50,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:39:50,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:39:50,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:39:50,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:39:50,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:39:50,802 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:39:50,803 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:39:50,805 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:39:50,806 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:39:50,807 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:39:50,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:39:50,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:39:50,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:39:50,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:39:50,811 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:39:50,812 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:39:50,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:39:50,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:39:50,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:39:50,814 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:39:50,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:39:50,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:39:50,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:39:50,816 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:39:50,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:39:50,818 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 12:39:50,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:39:50,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:39:50,830 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:39:50,830 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:39:50,830 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:39:50,830 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 12:39:50,830 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 12:39:50,830 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 12:39:50,830 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 12:39:50,831 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:39:50,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 12:39:50,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:39:50,832 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:39:50,834 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 12:39:50,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:39:50,835 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:39:50,835 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 12:39:50,836 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 12:39:50,836 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:39:50,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:39:50,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:39:50,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:39:50,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:39:50,870 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:39:50,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-10 12:39:50,905 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/data/efaa54ce5/322757d1c5104bd1b59393622102b54b/FLAG32696a7a4 [2018-11-10 12:39:51,197 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:39:51,197 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-10 12:39:51,201 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/data/efaa54ce5/322757d1c5104bd1b59393622102b54b/FLAG32696a7a4 [2018-11-10 12:39:51,210 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/data/efaa54ce5/322757d1c5104bd1b59393622102b54b [2018-11-10 12:39:51,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:39:51,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:39:51,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:39:51,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:39:51,217 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:39:51,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12305cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51, skipping insertion in model container [2018-11-10 12:39:51,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:39:51,235 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:39:51,333 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:39:51,335 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:39:51,344 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:39:51,352 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:39:51,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51 WrapperNode [2018-11-10 12:39:51,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:39:51,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:39:51,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:39:51,353 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:39:51,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:39:51,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:39:51,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:39:51,373 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:39:51,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... [2018-11-10 12:39:51,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:39:51,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:39:51,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:39:51,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:39:51,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:39:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:39:51,596 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:39:51,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:51 BoogieIcfgContainer [2018-11-10 12:39:51,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:39:51,597 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 12:39:51,597 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 12:39:51,600 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 12:39:51,600 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:39:51,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 12:39:51" (1/3) ... [2018-11-10 12:39:51,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1000dc89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:39:51, skipping insertion in model container [2018-11-10 12:39:51,602 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:39:51,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:51" (2/3) ... [2018-11-10 12:39:51,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1000dc89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:39:51, skipping insertion in model container [2018-11-10 12:39:51,602 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:39:51,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:51" (3/3) ... [2018-11-10 12:39:51,604 INFO L375 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-10 12:39:51,654 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:39:51,654 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 12:39:51,655 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 12:39:51,655 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 12:39:51,655 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:39:51,655 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:39:51,655 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 12:39:51,655 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:39:51,655 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 12:39:51,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-10 12:39:51,686 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-10 12:39:51,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:39:51,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:39:51,692 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:39:51,693 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:39:51,693 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 12:39:51,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-10 12:39:51,694 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-10 12:39:51,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:39:51,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:39:51,695 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:39:51,695 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:39:51,702 INFO L793 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 13#L41true assume main_#t~nondet5 != 0;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 7#L18true assume !(f_~k~0 > 1073741823); 16#L23-2true [2018-11-10 12:39:51,702 INFO L795 eck$LassoCheckResult]: Loop: 16#L23-2true assume true; 19#L23true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 16#L23-2true [2018-11-10 12:39:51,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:39:51,707 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2018-11-10 12:39:51,709 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:39:51,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:39:51,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:39:51,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:39:51,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2018-11-10 12:39:51,793 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:39:51,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:39:51,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:39:51,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:39:51,799 INFO L82 PathProgramCache]: Analyzing trace with hash 889509742, now seen corresponding path program 1 times [2018-11-10 12:39:51,799 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:39:51,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:39:51,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:39:51,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:39:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:39:51,879 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:39:51,879 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:39:51,879 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:39:51,880 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:39:51,880 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:39:51,880 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:51,880 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:39:51,880 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:39:51,880 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-10 12:39:51,880 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:39:51,880 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:39:51,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:51,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:39:52,044 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:39:52,045 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,058 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,059 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,075 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,079 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,079 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,096 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,096 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,098 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,099 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,124 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,124 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,127 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,127 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,147 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,147 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,163 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:39:52,165 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:39:52,165 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:39:52,180 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:39:52,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:39:52,210 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,242 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 12:40:04,245 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:04,245 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:04,245 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:04,245 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:04,245 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:04,245 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,245 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:04,245 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:04,246 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-10 12:40:04,246 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:04,246 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:04,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,326 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:04,329 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:04,330 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,332 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,332 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:04,332 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,332 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,332 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,334 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:04,334 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:04,336 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:04,337 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,337 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,338 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:04,338 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,338 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,338 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,338 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:04,339 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:04,339 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:04,340 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,340 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,340 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:04,340 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,340 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,341 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,341 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:04,341 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:04,342 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:04,342 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,342 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,343 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:04,343 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,343 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,343 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,343 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:04,343 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:04,344 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:04,344 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,348 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,348 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:04,348 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,348 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,348 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,349 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:04,349 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:04,350 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:04,350 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:04,351 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:04,351 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:04,351 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:04,351 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:04,355 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:04,355 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:04,399 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:04,432 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-10 12:40:04,433 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-10 12:40:04,435 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:04,437 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:04,437 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:04,438 INFO L519 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] [2018-11-10 12:40:04,445 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:04,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:04,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:04,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:04,525 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 [2018-11-10 12:40:04,526 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2018-11-10 12:40:04,604 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 4 states. Result 67 states and 91 transitions. Complement of second has 7 states. [2018-11-10 12:40:04,605 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 [2018-11-10 12:40:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:40:04,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2018-11-10 12:40:04,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 12:40:04,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:04,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 12:40:04,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:04,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 12:40:04,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:04,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 91 transitions. [2018-11-10 12:40:04,614 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-11-10 12:40:04,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 27 states and 35 transitions. [2018-11-10 12:40:04,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-10 12:40:04,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-10 12:40:04,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-11-10 12:40:04,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:04,619 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-10 12:40:04,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-11-10 12:40:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2018-11-10 12:40:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 12:40:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2018-11-10 12:40:04,642 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-11-10 12:40:04,643 INFO L608 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-11-10 12:40:04,643 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 12:40:04,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2018-11-10 12:40:04,644 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-10 12:40:04,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:04,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:04,645 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:40:04,645 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:40:04,645 INFO L793 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 154#L41 assume !(main_#t~nondet5 != 0);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 148#L18-1 assume !(f_~k~0 > 1073741823); 149#L23-5 [2018-11-10 12:40:04,645 INFO L795 eck$LassoCheckResult]: Loop: 149#L23-5 assume true; 152#L23-3 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 149#L23-5 [2018-11-10 12:40:04,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:04,646 INFO L82 PathProgramCache]: Analyzing trace with hash 926920, now seen corresponding path program 1 times [2018-11-10 12:40:04,646 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:04,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:04,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:04,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:04,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2727, now seen corresponding path program 1 times [2018-11-10 12:40:04,653 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:04,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:04,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:04,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:04,657 INFO L82 PathProgramCache]: Analyzing trace with hash 890771886, now seen corresponding path program 1 times [2018-11-10 12:40:04,657 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:04,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:04,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:04,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:04,698 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:04,699 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:04,699 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:04,699 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:04,699 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:04,699 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,699 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:04,699 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:04,699 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-10 12:40:04,699 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:04,699 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:04,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:04,780 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:04,780 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,801 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,801 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,821 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,822 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,824 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,824 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,844 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,844 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,876 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,876 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,897 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,897 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,916 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,916 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,919 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,919 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,936 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,936 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,941 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,941 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:04,959 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,959 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,961 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,962 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:04,978 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:04,978 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:04,981 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:04,981 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:05,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:05,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:05,013 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:05,013 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:05,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:05,031 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:05,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:05,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,085 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 12:40:17,088 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:17,088 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:17,088 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:17,088 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:17,088 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:17,088 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:17,088 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:17,088 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:17,088 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-10 12:40:17,088 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:17,089 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:17,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,157 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:17,157 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:17,158 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,158 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,158 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:17,159 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,159 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,159 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,159 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:17,159 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:17,160 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:17,160 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,160 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,160 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:17,160 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,160 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,161 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,161 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:17,161 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:17,162 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:17,162 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,163 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,163 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,163 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,165 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:17,165 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:17,185 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:17,195 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:40:17,196 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:40:17,196 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:17,197 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:17,198 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:17,198 INFO L519 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] [2018-11-10 12:40:17,213 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:17,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:17,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:17,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:17,248 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 [2018-11-10 12:40:17,248 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-10 12:40:17,284 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 33 states and 43 transitions. Complement of second has 6 states. [2018-11-10 12:40:17,285 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 [2018-11-10 12:40:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:40:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-11-10 12:40:17,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 12:40:17,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 12:40:17,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 12:40:17,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2018-11-10 12:40:17,287 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-11-10 12:40:17,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 29 states and 38 transitions. [2018-11-10 12:40:17,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-10 12:40:17,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-10 12:40:17,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2018-11-10 12:40:17,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:17,288 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-10 12:40:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2018-11-10 12:40:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2018-11-10 12:40:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 12:40:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2018-11-10 12:40:17,290 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-10 12:40:17,290 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-10 12:40:17,290 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 12:40:17,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2018-11-10 12:40:17,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:40:17,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:17,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:17,291 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 12:40:17,291 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:17,291 INFO L793 eck$LassoCheckResult]: Stem: 262#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 258#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 257#L41 assume main_#t~nondet5 != 0;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 251#L18 assume !(f_~k~0 > 1073741823); 252#L23-2 assume true; 260#L23 assume !(f_~z~0 < f_~k~0); 246#L29-2 [2018-11-10 12:40:17,291 INFO L795 eck$LassoCheckResult]: Loop: 246#L29-2 assume true; 247#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 248#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 246#L29-2 [2018-11-10 12:40:17,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,292 INFO L82 PathProgramCache]: Analyzing trace with hash 889509740, now seen corresponding path program 1 times [2018-11-10 12:40:17,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,297 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 1 times [2018-11-10 12:40:17,297 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,301 INFO L82 PathProgramCache]: Analyzing trace with hash -563525963, now seen corresponding path program 1 times [2018-11-10 12:40:17,301 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,350 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:17,350 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:17,350 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:17,350 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:17,350 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:17,350 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:17,350 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:17,350 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:17,350 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-10 12:40:17,351 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:17,351 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:17,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,431 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:17,431 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,433 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,433 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,435 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,435 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,451 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,451 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,453 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,453 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,469 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,469 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,472 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,472 INFO L446 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=-8, ULTIMATE.start_f_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,491 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,491 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,507 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,507 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,510 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,510 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,529 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,529 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,546 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:17,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,646 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:17,647 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:17,647 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:17,648 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:17,648 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:17,648 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:17,648 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:17,648 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:17,648 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:17,648 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-10 12:40:17,648 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:17,648 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:17,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,705 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:17,705 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:17,705 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,706 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,706 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:17,706 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,706 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,706 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,707 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:17,707 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:17,713 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:17,713 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,714 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,715 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:17,715 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:17,718 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:17,718 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,731 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:17,731 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,731 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,731 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,731 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:17,731 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:17,732 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:17,733 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:17,734 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:17,734 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:17,734 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:17,734 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:17,737 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:17,737 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:17,748 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:17,754 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:40:17,754 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:40:17,754 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:17,755 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:17,755 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:17,756 INFO L519 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] [2018-11-10 12:40:17,760 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:17,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:17,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:17,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:17,796 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 [2018-11-10 12:40:17,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 11 Second operand 5 states. [2018-11-10 12:40:17,825 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 29 states and 38 transitions. Complement of second has 8 states. [2018-11-10 12:40:17,825 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 [2018-11-10 12:40:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-10 12:40:17,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 12:40:17,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 12:40:17,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 12:40:17,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:17,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2018-11-10 12:40:17,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:40:17,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 37 transitions. [2018-11-10 12:40:17,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-10 12:40:17,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-10 12:40:17,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2018-11-10 12:40:17,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:17,828 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-11-10 12:40:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2018-11-10 12:40:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-11-10 12:40:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 12:40:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-11-10 12:40:17,830 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-10 12:40:17,830 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-10 12:40:17,830 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 12:40:17,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2018-11-10 12:40:17,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:40:17,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:17,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:17,831 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 12:40:17,832 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:17,832 INFO L793 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 374#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 373#L41 assume !(main_#t~nondet5 != 0);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 365#L18-1 assume !(f_~k~0 > 1073741823); 366#L23-5 assume true; 368#L23-3 assume !(f_~z~0 < f_~k~0); 356#L29-5 [2018-11-10 12:40:17,832 INFO L795 eck$LassoCheckResult]: Loop: 356#L29-5 assume true; 380#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 355#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 356#L29-5 [2018-11-10 12:40:17,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,832 INFO L82 PathProgramCache]: Analyzing trace with hash 890771884, now seen corresponding path program 1 times [2018-11-10 12:40:17,832 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 1 times [2018-11-10 12:40:17,836 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1617659010, now seen corresponding path program 1 times [2018-11-10 12:40:17,839 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:17,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:17,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:17,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:17,876 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:17,876 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:17,876 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:17,876 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:17,876 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:17,876 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:17,876 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:17,876 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:17,876 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-10 12:40:17,876 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:17,876 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:17,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:17,945 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:17,945 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,947 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,947 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,949 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,949 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,965 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,965 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,966 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,966 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,982 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,982 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:17,984 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:17,984 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:17,999 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:17,999 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,001 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,001 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,017 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,017 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,020 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,020 INFO L446 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=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,036 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,036 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:18,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,125 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:18,126 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:18,126 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:18,126 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:18,126 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:18,126 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:18,126 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:18,126 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:18,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:18,127 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-10 12:40:18,127 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:18,127 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:18,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,175 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:18,175 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:18,175 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,177 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:18,177 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:18,180 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:18,180 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,180 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,181 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:18,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,181 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,181 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:18,181 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:18,182 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:18,182 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,182 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,182 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:18,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,183 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:18,183 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:18,183 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:18,184 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,187 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:18,187 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:18,193 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:18,195 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:40:18,196 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:40:18,196 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:18,197 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:18,197 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:18,197 INFO L519 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] [2018-11-10 12:40:18,213 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:18,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:18,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:18,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:18,244 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 [2018-11-10 12:40:18,244 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-10 12:40:18,263 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 35 states and 46 transitions. Complement of second has 8 states. [2018-11-10 12:40:18,263 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 [2018-11-10 12:40:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-10 12:40:18,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 12:40:18,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:18,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 12:40:18,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:18,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 12:40:18,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:18,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2018-11-10 12:40:18,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:40:18,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 45 transitions. [2018-11-10 12:40:18,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-10 12:40:18,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-10 12:40:18,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 45 transitions. [2018-11-10 12:40:18,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:18,266 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-10 12:40:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 45 transitions. [2018-11-10 12:40:18,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-10 12:40:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 12:40:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2018-11-10 12:40:18,268 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-10 12:40:18,268 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-10 12:40:18,268 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 12:40:18,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 44 transitions. [2018-11-10 12:40:18,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:40:18,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:18,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:18,269 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:18,269 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:40:18,269 INFO L793 eck$LassoCheckResult]: Stem: 505#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 501#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 499#L41 assume main_#t~nondet5 != 0;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 495#L18 assume !(f_~k~0 > 1073741823); 496#L23-2 assume true; 503#L23 assume !(f_~z~0 < f_~k~0); 506#L29-2 assume true; 483#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 484#L29 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 497#L30 [2018-11-10 12:40:18,269 INFO L795 eck$LassoCheckResult]: Loop: 497#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; 487#L29-2 assume true; 488#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 510#L29 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 497#L30 [2018-11-10 12:40:18,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:18,270 INFO L82 PathProgramCache]: Analyzing trace with hash -563525967, now seen corresponding path program 1 times [2018-11-10 12:40:18,270 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:18,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:18,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:18,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:18,274 INFO L82 PathProgramCache]: Analyzing trace with hash 2051801, now seen corresponding path program 1 times [2018-11-10 12:40:18,275 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:18,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:18,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:18,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:18,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1713749385, now seen corresponding path program 1 times [2018-11-10 12:40:18,279 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:18,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:18,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:18,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:18,305 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:18,305 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:18,305 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:18,305 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:18,305 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:18,305 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:18,305 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:18,305 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:18,305 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-10 12:40:18,305 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:18,305 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:18,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,340 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:18,340 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,342 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,342 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:18,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,381 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,381 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,400 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,400 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,427 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,427 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,429 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,430 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-8} Honda state: {ULTIMATE.start_f_#t~nondet3=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,447 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,463 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,463 INFO L446 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: [] [2018-11-10 12:40:18,486 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:18,486 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:18,486 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:18,486 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:18,486 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:18,486 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:18,486 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:18,486 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:18,487 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-10 12:40:18,487 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:18,487 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:18,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,562 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:18,563 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,570 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,570 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,595 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,595 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,597 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,597 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,616 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:18,616 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-8} Honda state: {ULTIMATE.start_f_#t~nondet3=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:18,633 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:18,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:18,656 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:18,837 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:18,838 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:18,838 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:18,838 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:18,838 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:18,838 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:18,838 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:18,838 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:18,839 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:18,839 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-10 12:40:18,839 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:18,839 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:18,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:18,894 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:18,894 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:18,894 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,894 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,895 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:18,895 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:18,898 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:18,898 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,899 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,899 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:18,899 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,899 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 12:40:18,899 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,899 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 12:40:18,899 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:18,900 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:18,900 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:18,901 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:18,901 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:18,901 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:18,901 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:18,902 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:18,902 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:18,909 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:18,914 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:40:18,914 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:40:18,914 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:18,915 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:18,915 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:18,915 INFO L519 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] [2018-11-10 12:40:18,926 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:18,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:18,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:18,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:18,996 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 [2018-11-10 12:40:18,996 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-11-10 12:40:19,047 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 46 states and 61 transitions. Complement of second has 7 states. [2018-11-10 12:40:19,049 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 [2018-11-10 12:40:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-10 12:40:19,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:40:19,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:19,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-10 12:40:19,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:19,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-10 12:40:19,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:19,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2018-11-10 12:40:19,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:40:19,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 41 states and 54 transitions. [2018-11-10 12:40:19,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-10 12:40:19,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-10 12:40:19,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 54 transitions. [2018-11-10 12:40:19,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:19,056 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2018-11-10 12:40:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 54 transitions. [2018-11-10 12:40:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-10 12:40:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 12:40:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2018-11-10 12:40:19,058 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2018-11-10 12:40:19,058 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2018-11-10 12:40:19,058 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 12:40:19,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 53 transitions. [2018-11-10 12:40:19,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:40:19,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:19,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:19,059 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:19,059 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:40:19,060 INFO L793 eck$LassoCheckResult]: Stem: 660#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 656#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 654#L41 assume !(main_#t~nondet5 != 0);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 642#L18-1 assume !(f_~k~0 > 1073741823); 643#L23-5 assume true; 646#L23-3 assume !(f_~z~0 < f_~k~0); 655#L29-5 assume true; 664#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 632#L29-3 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 633#L30-1 [2018-11-10 12:40:19,060 INFO L795 eck$LassoCheckResult]: Loop: 633#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; 651#L29-5 assume true; 662#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 670#L29-3 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 633#L30-1 [2018-11-10 12:40:19,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:19,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1617659014, now seen corresponding path program 1 times [2018-11-10 12:40:19,060 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:19,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:19,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:19,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:19,065 INFO L82 PathProgramCache]: Analyzing trace with hash 3313945, now seen corresponding path program 1 times [2018-11-10 12:40:19,065 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:19,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:19,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:19,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash -2118473710, now seen corresponding path program 1 times [2018-11-10 12:40:19,069 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:19,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:19,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:19,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:19,107 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:19,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:19,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:19,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:19,107 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:19,107 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:19,107 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:19,107 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:19,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-10 12:40:19,107 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:19,107 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:19,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,153 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:19,153 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,157 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,157 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,161 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,161 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-8} Honda state: {ULTIMATE.start_f_#t~nondet3=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,185 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,185 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:19,203 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,234 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,234 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,275 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,275 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,281 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,282 INFO L446 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: [] [2018-11-10 12:40:19,322 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:19,322 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:19,322 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:19,322 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:19,322 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:19,322 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:19,322 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:19,322 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:19,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-10 12:40:19,322 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:19,322 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:19,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,392 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:19,392 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,396 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,415 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:19,415 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,446 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,446 INFO L446 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=-8} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1, ULTIMATE.start_f_~k~0=0}, {ULTIMATE.start_f_~z~0=3, ULTIMATE.start_f_~k~0=0}, {ULTIMATE.start_f_~z~0=-3, ULTIMATE.start_f_~k~0=0}] Lambdas: [4, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,462 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,466 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,466 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,482 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,485 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,485 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,501 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,502 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,509 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,509 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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) [2018-11-10 12:40:19,541 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,542 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:19,557 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,557 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,587 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,587 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,590 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,590 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,606 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,606 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,608 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,608 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-8} Honda state: {ULTIMATE.start_f_#t~nondet3=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,624 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,629 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:19,629 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,645 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:19,645 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:19,663 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:19,663 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:19,848 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:19,849 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:19,849 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:19,849 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:19,849 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:19,849 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:19,849 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:19,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:19,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:19,849 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-10 12:40:19,849 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:19,849 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:19,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:19,937 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:19,937 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:19,937 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:19,938 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:19,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:19,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:19,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:19,939 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:19,939 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:19,944 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:19,947 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:40:19,947 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:40:19,947 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:19,948 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:19,949 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:19,949 INFO L519 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] [2018-11-10 12:40:19,954 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:19,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:19,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:19,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:20,010 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 [2018-11-10 12:40:20,010 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-11-10 12:40:20,042 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 53 states and 70 transitions. Complement of second has 7 states. [2018-11-10 12:40:20,043 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 [2018-11-10 12:40:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-10 12:40:20,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:40:20,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-10 12:40:20,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-10 12:40:20,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 70 transitions. [2018-11-10 12:40:20,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 48 states and 63 transitions. [2018-11-10 12:40:20,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-10 12:40:20,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-10 12:40:20,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 63 transitions. [2018-11-10 12:40:20,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:20,047 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 63 transitions. [2018-11-10 12:40:20,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 63 transitions. [2018-11-10 12:40:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-11-10 12:40:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-10 12:40:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-10 12:40:20,051 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-10 12:40:20,051 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-10 12:40:20,051 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-10 12:40:20,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2018-11-10 12:40:20,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:20,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:20,052 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:20,052 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:20,052 INFO L793 eck$LassoCheckResult]: Stem: 829#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 823#L41 assume main_#t~nondet5 != 0;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 811#L18 assume !(f_~k~0 > 1073741823); 812#L23-2 assume true; 827#L23 assume !(f_~z~0 < f_~k~0); 830#L29-2 assume true; 837#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 841#L29 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 821#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 808#L29-2 assume true; 805#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 806#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 807#L29-2 [2018-11-10 12:40:20,052 INFO L795 eck$LassoCheckResult]: Loop: 807#L29-2 assume true; 803#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 804#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 807#L29-2 [2018-11-10 12:40:20,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1713749389, now seen corresponding path program 1 times [2018-11-10 12:40:20,053 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:20,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,060 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 2 times [2018-11-10 12:40:20,060 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:20,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,063 INFO L82 PathProgramCache]: Analyzing trace with hash 31826164, now seen corresponding path program 2 times [2018-11-10 12:40:20,064 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,064 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,147 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:20,147 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:20,147 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:20,147 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:20,147 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:20,147 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:20,147 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:20,147 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:20,147 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-10 12:40:20,147 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:20,148 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:20,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,216 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:20,216 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,218 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:20,218 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:20,234 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:20,234 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,236 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:20,236 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:20,254 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:20,325 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:20,326 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:20,326 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:20,327 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:20,327 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:20,327 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:20,327 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:20,327 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:20,327 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:20,327 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-10 12:40:20,327 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:20,327 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:20,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,382 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:20,382 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:20,382 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,382 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,383 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,383 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,383 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,383 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:20,383 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:20,385 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,385 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,385 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,386 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,386 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,386 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,386 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:20,386 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:20,387 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,387 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,387 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,387 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,388 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,388 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,388 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,388 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,388 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,388 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,388 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,388 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,389 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,389 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,389 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,389 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,389 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,389 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,389 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,390 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,390 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,390 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,390 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,391 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,391 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,391 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,392 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,392 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,392 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,392 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,392 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,392 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,392 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,393 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,393 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,393 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,393 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,394 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,394 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,394 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,394 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:20,394 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:20,396 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,396 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,396 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,396 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,396 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,396 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,397 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,397 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,397 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,397 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,397 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,398 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,398 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,398 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,398 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,398 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,398 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,398 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,399 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,399 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,399 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,400 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,401 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:20,401 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:20,406 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:20,412 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-10 12:40:20,412 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 12:40:20,413 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:20,413 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:20,413 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:20,414 INFO L519 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] [2018-11-10 12:40:20,433 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:20,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:20,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:20,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:20,469 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 [2018-11-10 12:40:20,469 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 23 Second operand 5 states. [2018-11-10 12:40:20,507 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 23. Second operand 5 states. Result 74 states and 93 transitions. Complement of second has 8 states. [2018-11-10 12:40:20,507 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 [2018-11-10 12:40:20,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:20,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-10 12:40:20,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 3 letters. [2018-11-10 12:40:20,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:20,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 6 letters. [2018-11-10 12:40:20,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 93 transitions. [2018-11-10 12:40:20,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 62 states and 79 transitions. [2018-11-10 12:40:20,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-10 12:40:20,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-10 12:40:20,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 79 transitions. [2018-11-10 12:40:20,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:20,510 INFO L705 BuchiCegarLoop]: Abstraction has 62 states and 79 transitions. [2018-11-10 12:40:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 79 transitions. [2018-11-10 12:40:20,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2018-11-10 12:40:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-10 12:40:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2018-11-10 12:40:20,515 INFO L728 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2018-11-10 12:40:20,515 INFO L608 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2018-11-10 12:40:20,515 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-10 12:40:20,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 76 transitions. [2018-11-10 12:40:20,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:20,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:20,516 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:20,516 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:20,516 INFO L793 eck$LassoCheckResult]: Stem: 1037#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1033#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1031#L41 assume !(main_#t~nondet5 != 0);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1016#L18-1 assume !(f_~k~0 > 1073741823); 1017#L23-5 assume true; 1020#L23-3 assume !(f_~z~0 < f_~k~0); 1032#L29-5 assume true; 1039#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1043#L29-3 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 1026#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1027#L29-5 assume true; 1046#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1045#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1004#L29-5 [2018-11-10 12:40:20,516 INFO L795 eck$LassoCheckResult]: Loop: 1004#L29-5 assume true; 1041#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1003#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1004#L29-5 [2018-11-10 12:40:20,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,517 INFO L82 PathProgramCache]: Analyzing trace with hash -2118473706, now seen corresponding path program 1 times [2018-11-10 12:40:20,517 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,517 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 2 times [2018-11-10 12:40:20,523 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:40:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1200661292, now seen corresponding path program 2 times [2018-11-10 12:40:20,527 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,527 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,593 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:20,593 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:20,593 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:20,593 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:20,593 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:20,593 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:20,593 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:20,593 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:20,593 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-10 12:40:20,594 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:20,594 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:20,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,649 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:20,649 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:20,652 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:20,654 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:20,654 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:20,670 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:20,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:20,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:20,764 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:20,765 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:20,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:20,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:20,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:20,765 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:20,765 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:20,765 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:20,765 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:20,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-10 12:40:20,766 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:20,766 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:20,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:20,817 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:20,817 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:20,817 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,817 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,818 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:20,818 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,818 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,818 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,818 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:20,818 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:20,819 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:20,819 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:20,819 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:20,820 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:20,820 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:20,820 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:20,821 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:20,821 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:20,826 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:20,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:40:20,829 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:40:20,829 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:20,830 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:20,830 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:20,830 INFO L519 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] [2018-11-10 12:40:20,845 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:20,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:20,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:20,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:20,891 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 [2018-11-10 12:40:20,891 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 76 transitions. cyclomatic complexity: 27 Second operand 5 states. [2018-11-10 12:40:20,912 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 76 transitions. cyclomatic complexity: 27. Second operand 5 states. Result 86 states and 107 transitions. Complement of second has 8 states. [2018-11-10 12:40:20,914 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 [2018-11-10 12:40:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-10 12:40:20,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 3 letters. [2018-11-10 12:40:20,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:20,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 6 letters. [2018-11-10 12:40:20,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:20,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 107 transitions. [2018-11-10 12:40:20,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 74 states and 93 transitions. [2018-11-10 12:40:20,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-10 12:40:20,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2018-11-10 12:40:20,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 93 transitions. [2018-11-10 12:40:20,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:20,917 INFO L705 BuchiCegarLoop]: Abstraction has 74 states and 93 transitions. [2018-11-10 12:40:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 93 transitions. [2018-11-10 12:40:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-11-10 12:40:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-10 12:40:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2018-11-10 12:40:20,921 INFO L728 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2018-11-10 12:40:20,921 INFO L608 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2018-11-10 12:40:20,921 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-10 12:40:20,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 90 transitions. [2018-11-10 12:40:20,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:40:20,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:20,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:20,923 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:20,923 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:20,923 INFO L793 eck$LassoCheckResult]: Stem: 1263#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1259#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1257#L41 assume main_#t~nondet5 != 0;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1244#L18 assume !(f_~k~0 > 1073741823); 1245#L23-2 assume true; 1261#L23 assume !(f_~z~0 < f_~k~0); 1235#L29-2 assume true; 1236#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1286#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1284#L29-2 assume true; 1282#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1280#L29 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 1279#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1278#L29-2 assume true; 1276#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1273#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1274#L29-2 [2018-11-10 12:40:20,923 INFO L795 eck$LassoCheckResult]: Loop: 1274#L29-2 assume true; 1277#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1275#L29 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1274#L29-2 [2018-11-10 12:40:20,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1709980196, now seen corresponding path program 3 times [2018-11-10 12:40:20,923 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,924 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,930 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 3 times [2018-11-10 12:40:20,930 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,930 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:20,933 INFO L82 PathProgramCache]: Analyzing trace with hash -587052803, now seen corresponding path program 4 times [2018-11-10 12:40:20,933 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:20,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:20,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,934 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:20,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,005 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:21,006 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:21,006 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:21,006 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:21,006 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:21,006 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:21,006 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:21,006 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:21,006 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-10 12:40:21,006 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:21,006 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:21,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,058 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:21,058 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,061 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,063 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,063 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,088 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,088 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,097 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,097 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,120 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,122 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,122 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,147 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,149 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,149 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,174 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,174 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,176 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,176 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,192 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,193 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,195 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,195 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,240 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,241 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,245 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,245 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,263 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,263 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,280 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:21,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,373 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:21,374 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:21,374 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:21,375 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:21,375 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:21,375 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:21,375 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:21,375 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:21,375 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:21,375 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-10 12:40:21,375 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:21,375 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:21,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,425 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:21,426 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:21,426 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,427 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,428 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,428 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,428 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,428 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,428 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,429 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,429 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,429 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,429 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,429 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,430 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,430 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,430 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,430 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,430 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,431 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,431 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,432 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:21,432 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:21,434 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,434 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,434 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,434 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,435 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,435 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,435 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,436 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,436 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,436 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,436 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,436 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,436 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,437 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,437 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,437 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,437 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,437 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,437 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,438 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,438 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,438 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,440 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:21,440 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:21,442 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,442 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,443 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:21,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:21,444 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:21,444 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:21,444 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:21,445 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:21,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:21,445 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:21,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:21,447 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:21,447 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:21,452 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:21,456 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:40:21,456 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:40:21,456 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:21,457 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:21,457 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:21,458 INFO L519 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] [2018-11-10 12:40:21,469 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:21,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:21,506 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 [2018-11-10 12:40:21,506 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-10 12:40:21,524 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 84 states and 103 transitions. Complement of second has 8 states. [2018-11-10 12:40:21,524 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 [2018-11-10 12:40:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-10 12:40:21,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:21,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:21,525 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:40:21,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:21,550 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 [2018-11-10 12:40:21,551 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-10 12:40:21,566 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 84 states and 103 transitions. Complement of second has 8 states. [2018-11-10 12:40:21,566 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 [2018-11-10 12:40:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-10 12:40:21,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:21,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:21,567 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:40:21,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:21,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:21,598 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 [2018-11-10 12:40:21,598 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-10 12:40:21,615 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 89 states and 110 transitions. Complement of second has 7 states. [2018-11-10 12:40:21,616 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 [2018-11-10 12:40:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-10 12:40:21,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:21,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:21,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 19 letters. Loop has 3 letters. [2018-11-10 12:40:21,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:21,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 16 letters. Loop has 6 letters. [2018-11-10 12:40:21,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:21,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 110 transitions. [2018-11-10 12:40:21,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 12:40:21,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 37 states and 46 transitions. [2018-11-10 12:40:21,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-10 12:40:21,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-10 12:40:21,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2018-11-10 12:40:21,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:40:21,619 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-10 12:40:21,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2018-11-10 12:40:21,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-10 12:40:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 12:40:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2018-11-10 12:40:21,621 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-10 12:40:21,621 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-10 12:40:21,621 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-10 12:40:21,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2018-11-10 12:40:21,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 12:40:21,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:40:21,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:40:21,622 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:40:21,622 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:40:21,622 INFO L793 eck$LassoCheckResult]: Stem: 1796#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1790#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1791#L41 assume !(main_#t~nondet5 != 0);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1797#L18-1 assume !(f_~k~0 > 1073741823); 1798#L23-5 assume true; 1799#L23-3 assume !(f_~z~0 < f_~k~0); 1805#L29-5 assume true; 1806#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1824#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1822#L29-5 assume true; 1821#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1812#L29-3 assume f_#t~nondet3 != 0;havoc f_#t~nondet3; 1813#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1819#L29-5 assume true; 1818#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1816#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1793#L29-5 [2018-11-10 12:40:21,622 INFO L795 eck$LassoCheckResult]: Loop: 1793#L29-5 assume true; 1810#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1792#L29-3 assume !(f_#t~nondet3 != 0);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1793#L29-5 [2018-11-10 12:40:21,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash 477492740, now seen corresponding path program 3 times [2018-11-10 12:40:21,623 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:21,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:21,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,623 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:21,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,629 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 3 times [2018-11-10 12:40:21,629 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:21,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:21,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,630 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:21,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:21,633 INFO L82 PathProgramCache]: Analyzing trace with hash 54599718, now seen corresponding path program 4 times [2018-11-10 12:40:21,633 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:40:21,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:40:21,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,633 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:40:21,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:40:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:40:21,713 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:21,713 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:21,713 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:21,713 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:21,713 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:40:21,713 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:21,713 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:21,713 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:21,714 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-10 12:40:21,714 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:21,714 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:21,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,789 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:21,789 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,794 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,810 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,810 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,813 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,815 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,815 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,847 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,848 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,866 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,868 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:40:21,868 INFO L446 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_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:40:21,884 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_13e809a4-b376-40f3-bf60-60455c6cd090/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 [2018-11-10 12:40:21,903 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:40:21,903 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:40:21,983 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:40:21,984 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:40:21,984 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:40:21,984 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:40:21,984 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:40:21,984 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:40:21,984 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:40:21,984 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:40:21,984 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:40:21,984 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-10 12:40:21,984 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:40:21,984 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:40:21,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:21,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:22,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:22,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:40:22,039 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:40:22,039 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:40:22,040 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 [2018-11-10 12:40:22,040 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:22,040 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:22,040 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:22,040 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:22,040 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:22,040 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:22,041 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:22,042 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:22,042 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:22,042 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:22,042 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:22,042 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:22,042 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:22,042 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:22,042 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:22,043 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:22,043 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 [2018-11-10 12:40:22,043 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:22,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:22,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:22,043 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:22,044 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:22,044 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:22,046 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:22,046 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:22,047 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:22,047 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:40:22,047 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:22,047 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:22,047 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:22,047 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:40:22,047 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:40:22,048 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:40:22,048 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:40:22,048 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:40:22,048 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:40:22,048 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:40:22,048 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:40:22,049 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:40:22,049 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:40:22,053 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:40:22,055 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:40:22,055 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:40:22,056 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:40:22,056 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:40:22,057 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:40:22,057 INFO L519 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] [2018-11-10 12:40:22,069 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:40:22,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:22,100 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 [2018-11-10 12:40:22,100 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-10 12:40:22,113 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 50 states and 59 transitions. Complement of second has 8 states. [2018-11-10 12:40:22,113 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 [2018-11-10 12:40:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-10 12:40:22,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:22,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:22,114 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:40:22,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:22,138 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 [2018-11-10 12:40:22,138 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-10 12:40:22,150 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 50 states and 59 transitions. Complement of second has 8 states. [2018-11-10 12:40:22,150 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 [2018-11-10 12:40:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-10 12:40:22,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:22,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:22,151 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:40:22,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:40:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:40:22,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:40:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:40:22,178 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 [2018-11-10 12:40:22,178 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-10 12:40:22,192 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 55 states and 66 transitions. Complement of second has 7 states. [2018-11-10 12:40:22,193 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 [2018-11-10 12:40:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:40:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-11-10 12:40:22,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-10 12:40:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:22,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 19 letters. Loop has 3 letters. [2018-11-10 12:40:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:22,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 6 letters. [2018-11-10 12:40:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:40:22,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 66 transitions. [2018-11-10 12:40:22,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:40:22,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2018-11-10 12:40:22,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 12:40:22,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 12:40:22,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 12:40:22,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 12:40:22,194 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:40:22,194 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:40:22,194 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:40:22,194 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-10 12:40:22,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:40:22,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:40:22,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 12:40:22,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 12:40:22 BoogieIcfgContainer [2018-11-10 12:40:22,199 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 12:40:22,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:40:22,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:40:22,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:40:22,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:51" (3/4) ... [2018-11-10 12:40:22,202 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:40:22,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:40:22,203 INFO L168 Benchmark]: Toolchain (without parser) took 30989.84 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 953.8 MB in the beginning and 1.2 GB in the end (delta: -264.4 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,203 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:40:22,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 942.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,204 INFO L168 Benchmark]: Boogie Preprocessor took 14.00 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,204 INFO L168 Benchmark]: RCFGBuilder took 209.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,205 INFO L168 Benchmark]: BuchiAutomizer took 30602.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:40:22,205 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:40:22,207 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 942.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.00 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 209.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 30602.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -83.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.3 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 5 locations. One deterministic module has affine ranking function y 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 x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 30.5s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 29.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 71 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 321 SDslu, 109 SDs, 0 SdLazy, 136 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 87ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 58 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 25.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...